75 Cap Nut Manufacturers in 2024
This section provides an overview for cap nuts as well as their applications and principles. Also, please take a look at the list of 75 cap nut manufacturers and their company rankings. Here are the top-ranked cap nut companies as of November, 2024: 1.BMB Fasteners, 2.Foremost Fastener Company, 3.Continental Aero.
Table of Contents
What Is a Cap Nut?
Cap nuts, also known as domed cap nuts or acorn nuts, are hexagonal nuts with a closed end, lacking a through hole. Their design conceals the end of threaded rods or bolts, providing a clean and safe finish.
The term "cap nut" reflects their domed shape, resembling a cap. Synonyms include "cosmetic nut," "acorn nut," and "dome nut." They are also referred to as "bag nuts" and "hexagon socket nuts," defined as follows:
- Bag Nut: A nut with a closed end to conceal the tip of the threaded rod or bolt.
- Hexagon Socket Nut: A nut with a hexagonal shape for secure tightening and loosening.
Uses of Cap Nuts
Figure 1. Example of Cap Nut Use
Cap nuts enhance the appearance of assemblies by covering the exposed ends of bolts, reducing the risk of injury from sharp edges. They are particularly valued in applications requiring safety and tamper resistance, such as playground and gym equipment, as well as aircraft seating.
While cap nuts can be coated for corrosion resistance, their threads may remain vulnerable. Their design helps prevent the ingress of contaminants into bolt threads, simplifying maintenance.
Principle of Cap Nuts
Figure 2. Cap Nut and Bolt Length
When using cap nuts, the length of the bolt is critical to ensure the nut can be properly tightened without the bolt protruding. The hexagonal dimensions of cap nuts are standardized, allowing for use with standard hex nuts in double-nut configurations to prevent loosening.
Types of Cap Nuts
1. Standard Type
Figure 3. Types of Cap Nuts JIS Standard
Cap nuts are categorized into three types, each available in a smaller hexagonal version for various applications.
- Type 1: Integrated hexagonal and cap parts without a thread relief groove.
- Type 2: Integrated hexagonal and cap parts with a thread relief groove.
- Type 3: Hexagonal part and cap welded together.
Types 1 and 2 are machined from solid bars, whereas Type 3 involves welding a dome to a hex nut.
2. Non-Standard Types
Figure 4. Types of Cap Nuts Other Than JIS Standard
Additionally, cap nuts come in various designs and features, including those with mechanisms to prevent loosening, such as dome/flange types and cap U nut types.
3. Materials
Cap nuts are manufactured from steel, stainless steel, or copper alloys, each offering specific properties suitable for different applications and environments.
4. Surface Treatment
Surface treatments, such as trivalent chromium plating, are applied to steel cap nuts to enhance corrosion resistance.
5. Threads
The threads of cap nuts conform to metric standards for compatibility with various bolt sizes, ensuring a secure fit.
List of 75 Cap Nut Manufacturers
*Including some distributors, etc.
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- Company Size: largest first
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Wyandotte Industries, Inc.
Cap Nuts
Manufacturer Overview
Wyandotte Industries, Inc., established in 1959, and headquartered in Wyandotte, Minnesota, is a manufacturer and supplier of slotted nuts. Their product range includes special nuts, nylon insert locknuts, and CNC machining. Their products support strength, functionality, and performance of diverse industrial applications, providing essential components, catering to various industries including automotive, aerospace, electronics, and consumer goods. These products find applications in structural, electrical, and mechanical systems. Wyandotte Industries hold certifications such as ISO 9001, adhering to industry standards.
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White Racker Co.
Cap Nuts
Manufacturer Overview
While Racker Company was founded in 1894 and is headquartered in Elk Grove Village, Illinois. The company is a manufacturer servicer, and design engineer of plumbing and CNC machining-related needs for residential, commercial, and industrial customers. The company’s three product categories are marble toilet partition hardware, commercial plumbing, and CNC machining. CNC machining services include aluminum and brass casting, CNC milling, and CNC turning and boring. Marble toilet partition hardware offerings include stall door hardware, stirrups and angles, standards and rails, and anti-theft fasteners. Commercial plumbing products include pipe supports, chrome plated fittings and pipes, and urinal fittings.
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Suncor Stainless, Inc.
Cap Nuts
Manufacturer Overview
Suncor Stainless, Inc. is based in Plymouth, Massachusetts. Suncor Stainless serves the industrial, marine, architectural, commercial, government, and OEM markets as a manufacturer of stainless steel hardware and components. Suncor Stainless is ISO 9001:2015 certified. Suncor Stainless’s services include custom stainless steel manufacturing, product testing and quality assurance, strength testing, metal content testing, custom webbing, custom stainless steal chain assemblies, custom threading, machine swaging, corrosion resistance testing, and retail packaging. Suncor Stainless also supplies numerous components such as sheaves, hooks, and clips.
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StockCap
Cap Nuts
Manufacturer Overview
StockCap was founded in 1950 and is headquartered in Arnold, Missouri as a division of Sinclair & Rush, Inc. The company is an ISO 9001:2015 certified custom designer and manufacturer of parts for the automotive, finishing, and HVAC markets. The company produces several types of products including caps, plugs, tapes, and others, using materials such as vinyl, rubber, and plastic. The company’s custom capabilities include plastic injection molding, vinyl dip and rubber molding, extrusions, thermoforming, and finishing operations.
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Stock Drive Products/Sterling Instrument - SDP/SI
Cap Nuts
Manufacturer Overview
SDP/SI was founded in 1950 and is situated in New Hyde Park, New York. SDPP/SI is a manufacturer of precision gears and high-quality mechanical components used in the aerospace, industrial manufacturing, medical technology, and robotics fields. The company manufactures parts in a variety of materials including alloy steel, stainless steel, bronze, brass, nylon, and titanium. The company also provides coating services such as heat treating, zinc plating, and painting. Additional custom options are available including manufacturing to customer drawings and specifications.
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Product Components Corporation
Cap Nuts
Manufacturer Overview
Product Components Corp was founded by Joseph Saks in 1962 and operates out of Martinez, California. Product Components is a supplier of all types of plastic fasteners. Product Components provides custom molded, stamped, and machine stamped fasteners including screws, nuts bolts, knobs, washers, spacers, stand-offs, balls, and rivets among others. Product Components combines a full plastic fastener line including screws and bolts with engineered machined or molded component services for industrial applications for industries such as electronic, automotive, medical, aircraft, and food. Additional products include panel fasteners, spacers, standoffs, dowels, and other components for panel hardware.
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PennEngineering
Cap Nuts
Manufacturer Overview
PennEngineering was founded in 1942 and is headquartered in Danboro, Pennsylvania. Through its brand, PEM, the company is a manufacturer of fastening tools for industries such as aerospace electronics, automotive electronics, medical, EV, and EV charging. The company has branches across the United States, Europe, and Asia through which it manufactures components in the same regions where they are used. The company has data sheets, CAD downloads, and other tools to assist customers in selecting the correct fasteners for their needs. These fasteners vary by technology, characteristics, and type of material onto which they are applied.
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Peninsula Components, Inc.
Cap Nuts
Manufacturer Overview
Peninsula Components, Inc., founded in 1982 by William Gardiner, is a solution provider to OEM design engineers by being a manufacturer of products such as cable ties & hardware, connectors, hinges, and thermal products used in medical supplies, automotive, clean energy, and aviation sectors. The company in San Carlos, CA, offers services including inventory management, 3D catalog, design solution, assemblies, and kitting. PENCOM has over 25 logistics sites in North America, Asia, Central America, Europe, and South America, allowing the company to manufacture globally and supply locally.
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Midwest Screw Products, Inc.
Cap Nuts
Manufacturer Overview
Midwest Screw Products, Inc., founded in 1972 and headquartered in Minneapolis, Minnesota, is an American manufacturer specialized in precision manufacturing services. The company offers a range of services to produce custom machine parts. These services include automatic screw machining using machines equipped with multiple spindles for high production runs, computer numerical control (CNC) Swiss machining for components with tight tolerances, CNC lathes for components with tight tolerances and shorter set-up times, as well as CNC milling for refining components. Midwest Screw Products, Inc. supplies its products to various industries, including food and beverage, electronics, heating, ventilation, and air conditioning (HVAC), and hydraulics.
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Keystone Fastening Technologies, Inc.
Cap Nuts
Manufacturer Overview
Keystone Fastening Technologies, Inc. (KFT) is an American ISO 9001 certified manufacturer of stud welding and fastener equipment established in 1986 as the exclusive North American partner of the German company OBO Bettermann. Based in Wexford, Pennsylvania, the company offers various fastening solutions including welding studs, drawn arc accessories, and capacitor discharge equipment. Their products are utilized by clients in shipbuilding, rail, and aerospace component manufacturing. KFT also offers prototyping, fabrication, 3D modeling, and pre-production sampling services for unique customer projects.
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Key Fasteners Corporation
Cap Nuts
Manufacturer Overview
Key Fasteners Corporation, established in 1989, is a manufacturer of clod-formed fasteners components such as nuts, rivets, bolts, door hinge pins, caliper pins, and engine-critical components for the automotive sector. The Key Way, Berne, IN, company has ISO 9001:2015, CQ1-9, and ISO 14001:2015 certifications. The company has received awards and recognitions such as Honda for Service Part Support in 2022, Quality and Deliver from Aisin in 2021, and Excellence in Quality in 2021 from Honda Power Equipment.
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J.W. Winco, Inc.
Cap Nuts
Manufacturer Overview
J.W. Winco was originally founded as Ganter in 1894 in Germany. Winco specializes in parts manufacturing. Parts offerings the operating parts segment including handles, adjusting, and positioning parts; clamping parts segment featuring tensioning, clamping, switching, and levers; and finally the machine parts segment with indexing, locking, mounting, connecting elements, guides, spindles, rollers, magnets, casters, and wheels. Winco’s complete catalog contains over 75,000 standard parts. Winco is also ISO 9001 certified. Winco offers free CAD downloads and technical documentation for many arts.
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FM Stainless, LLC
Cap Nuts
Manufacturer Overview
FM Stainless was founded in the 1990s and is headquartered in Ellijay, Georgia. The company is a domestic manufacturer and fabricator of stainless steel and high alloy expansion products and other specialty fasteners. The company designs and manufactures fasteners that are specifically tailored to handle customer needs. The company’s product segments include Pipe Supports, Expansion Anchors, Stainless Hardware, and Chain & Wire Rope Products. Many components including those in Stainless Hardware can also be manufactured in titanium, Monel, and other alloys and materials.
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Component Hardware Group, Inc.
Cap Nuts
Manufacturer Overview
Component Hardware Group was established in 1981 and is based in Matawan, New Jersey. Component Hardware Group is a global manufacturer and designer of industrial components and assemblies for industries including food service, health care, construction, commercial services, and institutions. Component Hardware Group offers casting, forging, stamping, fabrication, and other custom sub-assembly solutions for customers globally. Component Hardware Group’s 3 flagship brands are Kell in refrigeration, Flame Gard in grease filters and cooking hood accessories, and Encore in plumbing hardware.
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Chicago Nut & Bolt, Inc.
Cap Nuts
Manufacturer Overview
Chicago Nut & Bolt is based in East Dundee, Illinois, and is a manufacturer of standard and custom fastener products for industries such as agriculture equipment, military, marine, railroad, and construction equipment. Chicago Nut & Bolt’s custom services include fastener engineering & prototyping, warehousing, rush work, and custom fasteners and bolts. Examples of custom fasteners and bolts in action are the Las Vegas City Center, Golden Gate Bridge refurbishing, Biosphere 2, and the “Son of Beast” roller coaster at King’s Island in Mason, Ohio.
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C. Sherman Johnson Co., Inc.
Cap Nuts
Manufacturer Overview
C. Sherman Johnson Co., Inc., founded in 1958, based in East Haddam, Connecticut, United States is a manufacturer of stainless steel turnbuckles, fittings, and marine accessories that have applications in the Marine industry. The company offers specific architectural hardware for cable and wire railings in private homes, commercial and municipal industries as well as in educational, medical, and sports arenas. They also manufacture lifeline fittings, rigging hardware, and boating accessories that are needed by boat designers, builders, and owners for use in the Marine accessories and Ship Building industries.
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BMB Fasteners
Cap Nuts
Manufacturer Overview
BMB Fasteners Inc., established in 1976 and with facilities across the USA, is a manufacturer of military-specified hardware and components that include those for the aerospace, military, healthcare, and construction industries. From humble beginnings as a manufacturer of fasteners and then military-specified hardware, in 2016, the company further expanded operations to include the manufacture of industrial vending machines that come complete with stocking, an inventory system, sales tracking, and a product usage solution.
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Bay Bolt
Cap Nuts
Manufacturer Overview
Bay Bolt was founded in 1981 and is based out of Oakland, California. The company produces fasteners and other components according to ASTM and SAE standards from materials including medium carbon steel, Alloyed steel, and atmospheric corrosion-resistant steel. They are commonly used in construction, waterworks, and underground situations. The company’s spectrum of fastener products includes bolts, nuts, washers, screws, and socket products. The company’s threaded fasteners cover 19 styles of fasteners, many designs of nuts and washers, and over 8 head styles.
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Arlington Fastener Company
Cap Nuts
Manufacturer Overview
Arlington Fastener Company was founded in 1969 and is located in Barrington, Illinois near Chicago. The company is a supplier of quality fasteners and through its subsidiary Tuttle Manufacturing, is also a manufacturer of custom fasteners. The company’s offerings include machine screws, sheet metal screws, threaded rods, and thread-forming screws. The company offers over 40,000 unique items in stock including domestic and import fasteners, standard and special. Designs not held in stock can generally be custom manufactured.
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Western States Hardware
Cap Nuts
Company Overview
Western States Hardware was founded in La Puente, California in 1968. Western States Hardware serves customers across the United States, offering products in a number of categories including: nuts, screws, & bolts, metric nuts, screws, & bolts, drills & cutting tools, saw blades, electrical connectors, pipe nipples, & pipe fittings, industrial brushes, parker brass fittings & valves, anchors, abrasive pads, belts, & discs, chain & rigging accessories, various tools, valves, staple & nail guns, power & insert bits, and hoses, tubing, & clamps. Altogether, Western States Hardware offers over 750,000 products available.
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Texas Specialty Fasteners
Cap Nuts
Company Overview
Texas Specialty Fasteners (TSF) has honorably served as a distributor of hardware as a family-owned company since 1988 and is located in Wylie, Texas. TSF has both standard offering and custom manufacturing services of a wide range of products. These products include screws, nuts, bolts, washers, spacers & standoffs, precision parts, pins, wire handling, inserts, anchors, drill bits, taps, & dies, abrasives & sawblades, safety equipment, and miscellaneous equipment including rivets, handles, catches, and strut accessories.
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Sales Systems Ltd.
Cap Nuts
Company Overview
Sales Systems Ltd, formed by William C. Creecy, is a distributor of Market Standard and Military Specification Threaded Fasteners, including nuts, sockets, screws, pipe hangers, and cable ties. The company, headquartered in Portsmouth, VA, has two Mid-Atlantic distribution locations and offers metallurgical and non-destructive testing, mechanical testing, and chemical analysis services. The company is ISO 9001:2008 certified and provides products that fulfill requirements and Sales Systems standards to the petrochemical, automotive, construction, power transportation, and fiber industries.
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S.W. Anderson
Cap Nuts
Company Overview
S.W. Anderson Co. was founded in 1926 and is based in Farmingdale, New York. S.W. Anderson is a customer-based manufacturer and distributor of specialty fasteners, standard fasteners, and other OEM products. S.W. Anderson’s product lineup includes numerous segments including inserts, bearings, fasteners, slides, and isolators. S.W. Anderson distributes from many manufacturers including PEM, Stanley, Hutchinson, Acuuride, and Heyco. S.W. Anderson's services include vendor-managed inventory programs, advanced supply chain management, and order management.
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Rainbow Nut and Bolt, Inc.
Cap Nuts
Company Overview
Rainbow Nut and Bolt, Inc. was founded in August 1978 in Santa Ana, California. The company is a distributor of various fastening products including special finishing coating and reworking services. The company sells a complete line of fasteners including nuts, bolts, socket products, anchor products, and screws. The 16 materials available for refinishing include blue zinc, black oxide, and nickel. Reworking services including special cut to length, re-threading, re-tapping, drilling, and bending.
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Production Materials, Inc.
Cap Nuts
Company Overview
Production Materials Inc. was founded in 1981 and headquartered near Chicago in Wheeling, Illinois. The company is an ISO 9001:2015 certified distributor of fasteners and related components such as nuts, washers, and bolts to manufacturers as well as individuals. The company provides option types such as material, coating, and threading. The company also prototypes and designs parts and offers customization options on many of the parts available. The company also assists customers in the consolidation and standardization of existing parts along with inventory management assistance.
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Paramount Fasteners Inc.
Cap Nuts
Company Overview
Paramount Fasteners was founded in 1988 and is based in Santa Fe Springs, California. Paramount Fasteners supplies both common and rare industry standard nuts, bolts, screws, and other fastener products. Materials that Paramount Fasteners uses include B16, B8, B8M, B16, B7, 16-4, 17-7, Inconel, Hasteloy, and Monel and provided in 300 series stainless steel, 316 stainless steel, brass, bronze, carbon steel, nylon, and plastic. Paramount Fasters also distributes parts that have painted heads, hot dip galvanized, zinc plated, cad plated, black oxided, chrome plated, and flour coated.
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OneMonroe (Monroe Engineering Products)
Cap Nuts
Company Overview
OneMonroe was founded in the 1920s and is located in Rochester Hills, Michigan. OneMonroe is an ISO 9001:2015 and AS9100D certified global industrial manufacturing company serving several types of customers including manufacturers, distributors and catalog-houses across several vertical markets including aerospace/defense, automotive, medical, and transportation. Product lines include adjustable handles, bearings, casters, gaskets, hydraulic clamping, military spec hinges, molded rubber, piano hinges, pins, pull handles, quick release pins, seals, springs, toggle clamps, and various harnesses. Custom manufacturing is also available to meet specific customer needs.
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Nova Fasteners Co., Inc.
Cap Nuts
Company Overview
Nova Fasteners Co., Inc. are a distributor of Threaded Fasteners and Anchors since 1948 and is based in New York. The company's inventory consists of anchors that are of different shapes, sizes, and materials for various applications such as there are wedge anchors, sleeve anchors plastic anchors, and so on. There are also numerous types of screws like Machine screws, Concrete screws, Tapping screws, and more including various nuts and bolts for different purposes. You can also get Structural Washers which are heat treated for durability and other Zinc and Nickel plated washers at Nova Fasteners.
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National Bolt & Nut Corp.
Cap Nuts
Company Overview
National Bolt & Nut Corporation is based in Schaumburg, Illinois. National Bolt & Nut is a distributor of bolts, nuts, and related tools, serving the heavy equipment & construction, mining, transportation, automotive, and alternative energy industries. National Bolt & Nut is ISO 9001 certified. National Bolt & Nut product listings include standard and custom nuts, spacers, and washers with assorted head styles. Other offerings include a variety of screws, pins, and sprockets.
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Mudge Fasteners, Inc.
Cap Nuts
Company Overview
Mudge Fasteners Inc., established in 1975 and based in Corona, California, is a distributor of a large selection of fasteners, fastener tools, and adhesives. It has more than 30 stocking warehouses across the United States, including Houston (TX), Nashville (TN), and Kent (WA). The company stocks products from several brands like 3M, Bosch, and DeWalt, and the products can be bought online from several platforms, including Amazon, Sears, and Menards. The company also offers custom parts for customers who want production based on specific requirements. Its other services are customized packaging, kitting, and fabrication services.
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Mil-Spec Fasteners Corp.
Cap Nuts
Company Overview
Mil-Spec Fasteners, Corp. is based in Hampstead, Maryland. And is a distributor of fasteners and related equipment. Mil-Spec can also manufacture custom designs in virtually any finish or material. Mil-Spec is ISO 9001:2008 compliant. Mil-Spec’s calibration system is also compliant to MIL-STD-45662A. Mil-Spec’s product categories include cap screws, washers, electronic hardware, bolts, inserts, screws, pins, nuts, rivets, as well as miscellaneous hardware including clamps, fittings, grommets, hinges, O rings, and retaining rings.
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MF Supply
Cap Nuts
Company Overview
MF Supply is a stocking distributor for business, industry, and government. MF Supply specializes in fasteners, hardware, and safety supplies. MF Supply product categories include PPE & safety, brands and equivalents, custom made parts, dowel pins, electronic & panel hardware, inserts, metric, Mil-spec & domestic, nuts & washers, pins, precision shoulder screws, rivets & rivetnut inserts, screw driving tools, screws, self-clinching fasteners, socket products, spacers & standoffs, studs, and other products such as sealants, retaining rings, and screw driving tools.
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Kinter (K International, Inc.)
Cap Nuts
Company Overview
Kinter (K International, Inc) is a US-based retail display hardware distributor and manufacturer that has been servicing retail businesses since 1980. At its current capacity, the products range from ceiling display systems and sign holders to cables, ladderless sign hanging systems, and fasteners. The option for custom design and manufacture is also available. The company's products are used to display a variety of goods, such as merchandise information, sale signs, and inventory.
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Interstate Screw Corporation
Cap Nuts
Company Overview
Interstate Screw Corporation was founded in Miami, Florida in 1956 as a faster distributor and now operates out of Hialeah, Florida with expanded offerings with shipping offered globally and direct delivers across South Florida. Interstate Screw Corporation offers self-tapping screws, self-piercing screws, self-drilling screws, bolts, cap screws and socket products, machine screws and washers, nuts and threaded inserts, heavy duty screws and hollow wall anchors, tamper resistant and miscellaneous products, eyes, hooks, and blind rivets, as well as penetrating oil and electrical connectors.
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Hi-Tech Fasteners, Inc.
Cap Nuts
Company Overview
Hi-Tech Fasteners (HTF) was founded in 1988 and headquartered in Frederick, Maryland. HTF is a distributor of hardware components. HTF offers products in four product types: self-clinching fasteners such as studs and nuts, general fasteners & hardware, inserts, and components. HTF also offers a full line of PEM® Brand products including fasteners for metal sheets and panels, fasteners for BC boards and other non-ductile material, insert for plastics, bonding fasteners, rivet nuts, and fastener installation equipment.
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Foremost Fastener Company
Cap Nuts
Company Overview
Foremost Fastener Co., founded in 1971, is a supplier of standard and semi-standard industrial hardware used for fastening in the manufacturing and construction industries. Blind rivets, edge anchors, hex cap screws, nuts, and washers are among the products offered. Electronic hardware such as hex and round female or male standoffs, round spacers, and socket items such as button, flat, and low heads, socket shoulder screws, and socket set screws are supplied. The Addison, Illinois-based company provides bin stocking, custom bagging, and barcoding services and is a member of the Mid-West Fastener Association.
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Fasco Inc.
Cap Nuts
Company Overview
Fasco Inc. was founded in 1978 and is headquartered near Chicago in Alsip, Illinois. The company is a global nut and bolt distributor with locations in the US and Taiwan. The company serves the automotive, transportation, furniture, OEM, and consumer appliance industry among others. Product offerings include fasteners such as bolts and screws, and also parts for steering and brake assemblies, cabling, and pins. The company’s services include Kansan, VMI, and Just-In-Time shipping services to facilitate the efficiency of ordering and customer inventory management.
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Engineered Source, Inc.
Cap Nuts
Company Overview
Engineered Source Inc was founded in 1990 and operates out of Orange, California. Engineered Source Inc is a distributor of precision parts for numerous industries including automotive manufacturers, construction, electronics & robotics, fabrication & assembly, farm & agricultural equipment, gun manufacturers, marine & water treatment, medical manufacturers, and aerospace. Examples of specific products include custom internally threaded square pins, stainless steel pins, steel hex nuts, short dog point socket set screws, zinc plated steel material, custom stamped L brackets, painted self-drilling screws, and custom-locating dowel pins for transit gear units.
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Doran Specialties
Cap Nuts
Company Overview
Doran Specialties is based in Yorba Linda, California and is a distributor of a variety of fastening hardware and tools. Doran Specialties is 9001:2015 certified. Product categories include AN, MS, NAS, and BAC-certified fasteners including bolts, nuts, fittings, washers, rivets, screws, inserts, and pins. Doran Specialties’s other products include retaining rings, bushings, rods, cables, lanyards, captive screws and nuts, clams, connectors, semiconductors, fuses, keys, machine screws, set screws, spacers and standoffs, springs, wire forms, stampings, switches, washers, and wire. Additional aircraft-specific hardware include hook and loop fasteners, nylon fasteners, O-rings, and plugs.
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Continental Aero
Cap Nuts
Company Overview
Continental-Aero, founded in 1948 and now operating as a subsidiary of Tramec, LLC, is an American distributor located in Alsip, Illinois, specializing in the supply of locknuts. The company's product range encompasses various categories, including nylon-insert lock nuts identified by their purple trade colors, all-metal lock nuts, floorboard screws, as well as Grade 5 and Grade 8 finished hex nuts. The company also provides tailored packaging solutions through its automated packaging department, allowing for customization with a company's logo and part description. Notably, the company has introduced its matchbox truck series, serving as collectibles offered during trade shows and sales visits.
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Coburn-Myers Fastening Systems, Inc.
Cap Nuts
Company Overview
Coburn-Myers Fastening Systems Incorporated was founded in Trainer, Pennsylvania in 1981. Coburn-Myers manufactures and distributes industrial fasteners and related products. Coburn-Myers focuses both on standard bolts as well as custom designs featuring hundreds of combinations of materials, head styles, heat treatment, secondary operations, and finishes. Types available include hex bolts, heat cap screws, 12-point bolds, and stocked cap screws. Primary product also include buts, fasteners, studs, hand tools, anchors, washers, and other standard products.
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Bolt Products Inc.
Cap Nuts
Company Overview
Bolt Products Inc. was established in 1947 and operates out of San Dimas, California. Bolt Products is a wholesale distributor of fastening tools both domestically and internationally and is ISO 9001:2015 certified as well as RoHS and WEEE compliant. Bolt Products offers many types of products including bolts and plastic fasteners, nuts, lug nuts, nut retainers, cap nuts, bushings, plugs, ball studs, brass inserts, stud receivers, cable ties, cordgrips, liquid-tight flexible conduits, marking systems, and clips.
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Associated Fastening Products, Inc.
Cap Nuts
Company Overview
Associated Fastening Products, Inc. (AFP) was established in the early 1990s in Itasca, Illinois. AFP is a manufacturer and distributor of both standard and special fasteners for all uses, with many customers in the agriculture and gun manufacturing industries. Some of AFP’s product and service offerings include automatic screw machining, CNC services, brass fittings, standard fasteners, CNC machining, laser and waterjet cutting services, custom cold headed fasteners, metal stamping services, standard and special washers, cable ties, hardware kits and bagging, Swiss screw machining, inventory management, large diameter bolts, security fasteners, and wire form products.
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Armour Screw Co.
Cap Nuts
Company Overview
Armour Screw Co., since 1956, has been a distributor of standard and custom fasteners such as screws, nuts, bolts, washers, and rivets made from steel, bronze, aluminum, brass, and titanium and used in appliance, construction, electrical, recreational vehicle, snowmobile, and telecom industries. The company in Elk Grove Village, IL, offers sorting machine services and hand poly bagging, providing customers with hardware kits used for assembly and repair in a product recall situation. Armour Screw Co. is ISO 9001:2000 certified and RoHS compliant.
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Anchor Bolt & Supply Co.
Cap Nuts
Company Overview
Anchor Bolt & Supply, Co. was established in 1952 in Odessa, Texas to provide the Permian Basin region of West Texas with a readily available source of threaded fasteners. Today the company is a manufacturer and distributor of fasteners with over 14,000 line items on shelves as well as more that are available through vendors. The company has 11 product lines of fasteners as well as miscellaneous hardware & accessories such as paint, tape, and other materials. In addition to its product lines, the company offers 24-hour free customer service.
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All-Pro Fasteners, Inc.
Cap Nuts
Company Overview
All-Pro Fasteners, Inc., founded in 1976 with headquarters in the USA, is a manufacturer and distributor of fastening and related products suitable for various purposes, including heavy equipment, infrastructure, metal buildings, structural steel, and wind turbines. The company also provides its clients with industrial supplies and related products, offering a wide range of standard and tailored MRO, safety, and electrical supplies, utilizing its extensive network of global suppliers, distributors, and warehousing facilities. APF's customized supply chain services include VMI (vendor-managed inventory) to optimize their supply-side operations, shipping solutions for specific shipping requirements, and distribution plans.
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KD Fasteners, Inc.
Cap Nuts
Company Overview
KD Fasteners, Inc. was founded in 1987 and headquartered in Addison, Illinois. The company is a fastener manufacturer and distributor, specializing in custom fasteners from such materials as steel, brass, silicon bronze, and other non-ferrous metals, supplying over 100,000 different fastener components. The company has 3 product segments: standard fasteners, standard metric fasteners, and custom fasteners. Custom fastener varieties include studs, washers, machine screws, flange bolts, and many other varieties. The company also offers many plating varieties including zinc, black oxide, waxing, and Magni 565 and 560.
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HydraCheck
Cap Nuts
Distributor Overview
HydraCheck was established in 1990 and headquartered in West Valley City, Utah. The company is a distributor of diagnostic testing and maintenance for hydraulic systems across North America. The company provides support services for end customers as well as mechanics and technicians. The company’s product lines include testing products, diagnostic kits, and safety devices. Testing products include flanges, gauges, and thermometers while kits include identification kits and test kits. The company's safety devices include goggles, models, and guides.
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Dunham Rubber & Belting Corporation
Cap Nuts
Distributor Overview
Dunham Rubber & Belting Corp. (DRB) has been in operation since 1965 and is based in Greenwood, Indiana. DRB offers a variety of products and services, including conveyor belts and accessories, hydraulic hose and fittings, industrial hose and fittings, sanitary hose and fittings, material handling and ducting, sheet rubber and gaskets, UHMW, polycarbonate, and acrylic sheets, as well as supplies for the egg processing, brewery, distillery, and winery industries. In January of 2023, DRB was acquired by Belt Power, an independent distributor and fabricator of conveyor system components.
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Circle Valve Technologies Inc.
Cap Nuts
Distributor Overview
Circle Valve was founded in 1986 and headquartered in Harleysville, Pennsylvania. Circle Valve is a value-added distributor and manufacture rep of industrial valves, fittings, filters, and measurement control devices for a variety of industries and applications. Among Circle Valve’s product listings are check valves, relief valves, vacuum & high purity fittings, circle seal solenoid valves, Jefferson solenoid valves, Atkomatic solenoid valves GO regulators, cryogenic valves & equipment, hoke valves, Gyrolok Tube Fittings, Circle Seal Control Valves, and various measurement devices.
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Boltport Fasteners LLP
Cap Nuts
Manufacturer Overview
FerroBend, founded in Mumbai, India, in 1981 is a manufacturer of alloys, stainless steel and carbon steel. The company's product portfolio includes carbon steel and tool steel alloys, copper alloys, aluminum alloys, titanium alloys, and nickel alloys. Their products find applications in markets such as aerospace, medical devices, automotive, electronics, and more. The company also provides services including surface treatment, national distribution, product selection, customized services, quality assurance technical support and customer service.
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Nanning Aozhan Hardware Fastener Co., Ltd.
Cap Nuts
Manufacturer Overview
Nanning Aozhan Hardware Fastener Co., Ltd., established in 2008 and located in Nanning City, Guangxi, China, is a manufacturer of fasteners. The company specializes in producing stainless and carbon steel bolts, tapping screws, stainless chains, and washers. These products cater to industries such as automotive, construction, and machinery. Its fasteners find applications in structural engineering, automotive assembly, and machinery manufacturing. The company is ISO 9001 certified, maintaining stringent quality standards in production and distribution processes.
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Aashish Steel
Cap Nuts
Manufacturer Overview
Aashish Steels, established in 2015 and based in Mumbai, India, is a manufacturer and supplier of steel works. Its main activities include designing, engineering, and construction of steel works such as staircases & handrails, roofing structures, gratings, and more. The company owns a production facility with land area of 15,000 square feet in Singapore. Aashish Steel also manufactures, supplies and exports nuts, steel bolts, washers, and screws in India and around the world.
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Mahabali Steel Centre
Cap Nuts
Manufacturer Overview
Mahabali Steel Centre, established in 1998, is a manufacturer and supplier of stainless steel products based in Mumbai, India. The company offers a range of products, including decorative stainless steel sheets and profiles. These profiles are designed to have a consistent cross-section throughout their entire length. Additionally, the company specializes in stainless steel fabrication, which involves the creation of customized parts and components using raw stainless steel material. Mahabali Steel Centre's products and services cater to the specific requirements of various industries, including oil and gas, chemicals, power plants, pulp and paper, environmental, and engineering.
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Ramesh Steel Corporation
Cap Nuts
Manufacturer Overview
Ramesh Steel Corporation, founded in 1983 and headquartered in Mumbai, India, is a supplier and manufacturer of stainless steel, alloy steel, and carbon steel products. The company specializes in producing various industrial and construction materials, including pipes, flanges, buttweld fittings, screwed fittings, and socket weld fittings. Its products cater to industries such as petrochemicals, pharmaceuticals, oil and gas, and construction. The company holds ISO 9001:2015 and ISO 14001:2015 certifications, ensuring industrial quality and environmental management systems.
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Ningbo Frienden Precision Components Co., Ltd.
Cap Nuts
Manufacturer Overview
Ningbo Frienden Precision Components Co., Ltd., established in 2007 and headquartered in Ningbo, Zhejiang, China, is a manufacturer of precision components. The company caters to various industries, including automotive, electronics, machinery, and more. Its main products encompass precision screws, fastener nuts, distance spacers, and dowel pins. These components find applications in automotive assemblies, electronic devices, and machinery. The company holds ISO 9001 and ISO 14001 certifications, ensuring industrial quality and environmental standards.
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Hebei Chengyi Engineering Materials Co., Ltd.
Cap Nuts
Manufacturer Overview
Established in 2001, and located in Handan City, China, Hebei Chengyi Engineering Materials Co., Ltd is a manufacturer specializing in the production and sales of fasteners that are used in the electric power, steel structure, construction, and, mining industries. The company produces nuts&bolts, studs, screws, anchors, and, threads that have applications in the automobile industry. They also provide a series of washers including a spring washer, conic washer, tooth washer, and DIN 125 flat washer that are needed in the photovoltaic industry.
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Shenzhen Heat Hardware Co., Ltd
Cap Nuts
Manufacturer Overview
Shenzhen Heat Hardware Co. Ltd, founded in the year 2003, and based in Shenzhen City, China, is a manufacturer and supplier of screws, bolts, and fasteners. Their product portfolio includes a diverse range of screws, bolts, and fasteners. The company offers one-stop customized solutions of screws, custom bolts, and fasteners for producing, designing, supplying, and exporting. The company is ISO-certified for environmentally friendly products. The products are used in various industries which include automotive, electronic, electric, communication, medical, and military projects.
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DIC Fasteners
Cap Nuts
Manufacturer Overview
DIC Fasteners, headquartered in Chennai, India, is a manufacturer, exporter, and supplier of standard and customized fasteners. The company offers a wide range of products, including bolts, nuts, screws, washers, and rivets, used in various industries such as automotive, construction, manufacturing, and engineering, where they play a crucial role in joining and securing components together. DIC Fasteners also offers customizations made to any size and material range, utilizing several types of materials, including aluminum, brass, bronze, stainless steel, and steel, ensuring a diverse range of options to suit various applications.
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Qualified Fasteners, Inc.
Cap Nuts
Manufacturer Overview
Qualified Fasteners, Inc. was founded in 1990 and based in West Babylon, NewYork is a manufacturer of standard and custom fasteners that have applications in various industries. The company serves the navy, nuclear, marine, shipbuilders, and military industries by providing screws, bolts, nuts, washers, and threaded studs that are available with flat, hexagonal, slotted, square, and round heads. They are also capable of supplying military-specification fasteners and have received ASTM, ANSI, and NAS standards.
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Howmet Fastening Systems
Cap Nuts
Manufacturer Overview
Howmet Aerospace Inc is a metal product design, engineering, and manufacturing company based in the United States. They were founded in 1888 in Pittsburgh, Pennsylvania. They are a publicly owned company with 27 locations in the United States and six other countries. They produce fasteners and titanium structures, as well as jet engine components and heavy truck aluminum wheels. Aerospace is their largest and fastest expanding market, with solutions ranging from the most innovative investment castings, seamless rings, extrusions, and titanium mill products to airplane fasteners.
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ABB Electrification Canada ULC
Cap Nuts
Manufacturer Overview
ABB Electrification Canada is a subsidiary of industrial giant, ABB. ABB Electrification serves the data center solutions, oil, gas & chemicals, food & beverage, railway, infrastructure, and microgrids industries with solutions such as smart industry, E-mobility, smart living, smart power, smart cities, and smart distribution. Products include control systems, power electronics, UPS and power conditioning, industrial software, PLPC automation, robotics, power converters and inverters, medium voltage products, metallurgy products, control room solutions, and motors and generators.
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HASM
Cap Nuts
Manufacturer Overview
HASM is a special material manufacturer headquartered in 2006 in South Korea but established in 2018 in Toronto, Canada. Among its goods, one can find bolts, nuts, screws, studs, anchors and washers. The company's catalogue offers multiple products that are used in, including but not limited to, the Aerospace, Petrochemical & Refining, Power Generation, Pharmaceutical, Marine, Pulp & Paper, Semiconductor, and Water Treatment markets. Additionally, the firm meets applicable NAS, AN, MS, ANSI, ASTM, ASME, SAE, API, NACE, DIN, and KS standards. It is also ISO 9001:2015 and AS9100D certified.
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Ananka Group
Cap Nuts
Manufacturer Overview
Ananka Group is a fastener manufacturer established in Mumbai, India. While being specialized in inconel, monel and incoloy fasteners, the company has multiple other items in its catalogue, including flanges and rods. Its products are available for shipping to more than 90 countries, and are part of projects in the aerospace, food, automotive, marine, railway and paper industries alike. The company holds multiple certificates, such as ISO 9001:2015 and ISO 14001:2015. In addition, it also displays a weight chart of their products available to users on its website.
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Zhejiang Leader Fasteners Co., Ltd.
Cap Nuts
Company Overview
Zhejiang Leader Fasteners Co., Ltd., established in 1985 and located in Jiaxing City, Zhejiang Province, China, is a manufacturer and distributor of fasteners. The company specializes in producing a wide range of fastening solutions, hex nut rods, coupling nuts, square nuts, flange nuts, and locking nuts. Its products find applications in industries such as construction, automotive, and manufacturing. Zhejiang Leader Fasteners is ISO 9001 certified, maintaining industrial quality standards in its production processes.
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Vision Alloys
Cap Nuts
Company Overview
Vision Alloys, established in 2010, is a manufacturer, supplier, exporter, and stockist of an extensive range of ferrous and non-ferrous metal products, based in Mumbai, India. The company offers a diverse spectrum of trading, stockholding, and processing activities, catering to industries such as stainless steel, carbon steel, nickel alloys, copper, brass, and more. They provide a comprehensive array of products with rigorous testing, including pipes, tubes, rods, sheets, plates, fittings, and fasteners. Serving both domestic and international markets, the company delivers to industries like oil and gas, power plants, construction, and more in over 70 countries.
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WURTH GROUP
Cap Nuts
Company Overview
Würth Industry North America is the North American Branch of Würth Group, originally founded in Germany in 1945. The company is a global designer, manufacturer, and wholesaler of fastening components, materials, and inventory management systems for industries including automotive, manufacturing, and construction. The company offers custom VMI programs, Kanban storage systems, kitting & assembly, 3D printing, and other services to facilitate and expedite customer orders and procurement of supply chain components. The company also offers CAD specialty services including diagrams for hundreds of bolts, nuts, pins, and other fasters.
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G-Fast Distribution Inc
Cap Nuts
Company Overview
G-Fast has its roots back to 1989 and is based in Chicago, Illinois. G-Fast is a distributor and custom manufacturer of machine tools and equipment. Product offerings include bolts, screws, nuts, rivets, washers, pins, springs, wireforms, retaining rings, clamps, clips, pins, handles, electronic access tools, hinges, knobs, latches, panel fasteners, quick release pins, and wire management. Parts are available across several standards and materials. G-Fast’s services include custom specialized bolts, screws, and nuts, contract manufacturing, CNC machining, and cold heading.
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Fast-Rite International, Inc.
Cap Nuts
Company Overview
Fast-Rite was founded in 1992 and is headquartered in Glendale Heights, Illinois. The company is an ISO 9001:2015 certified manufacturer and distributor of fasteners, abrasives, tools, and accessories to manufacturing and other industries. The company has multiple distribution centers throughout the United States, as well as full-service sales, warehouse, and production facilities in both Mexico and Asia. The company offers rite-stock programs and optimization options. Rite-stock programs include customer-managed inventory, total VMI, virtual inventory, Kanban, and JIT programs. Optimization programs include assembly, automation, and robotics solutions.
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Aspen Fasteners Inc.
Cap Nuts
Company Overview
Aspen Fasteners was founded in 1961 and headquartered in Las Vegas, Nevada. Aspen Fasteners is a distributor for industrial fasters. Aspen Fasteners offers an extensive line in both metric and inch standards of anchors, bolts, nuts, screws, washers, rings, pins, pipe plugs, rivets, inserts, rods, studs, spacers, standoffs, panel fasteners, and tools including adapters, drivers anchor setting tools, keys, measuring tools, screwdriver insert bits, and screwdriver power bits. Material types include aluminum, brass, copper, iron, lead alloy, monel nickel copper alloy, nylon, phosphor bronze, plastic, silicon bronze, stainless steel, steel, and zinc.
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Essentra plc
Cap Nuts
Company Overview
Essentra Components is a producer of plastic injection moulded, vinyl dip moulded, and metal components, operating in 29 countries across 4 continents. Essentra Component has a catalog of over 45,000 products. These range from caps, plugs, wire & cable management, flange protection, knobs, handles & grips, access hardware, PCB, and electronics hardware. Essentra Component offers free samples of CADs of standard parts for assist customers in creating custom-manufacture red solutions, including prototyping and 3D printing.
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Jeng Bright International Corp.
Cap Nuts
Distributor Overview
Jeng Bright International Corp. is a supplier of fasteners and hardware. The company is based in Fengshan District, Kaohsiung City, Taiwan and was established in 1990. The company specializes in offering a wide range of fasteners and hardware components. Its main product range includes automotive screws, self-drilling screws, tapping screws, stainless steel screws, and machine screws. The company serves industries such as manufacturing, construction, and electronics. Jeng Bright International provides services like fastener customization and technical assistance. Its products and components used in various applications are manufactured to the IFI, DIN, ISO International standard specifications.
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NEW FASTENERS ARE HERE LTD
BLACK LUSTER STEEL METRIC ACORN NUTS
Distributor Overview
New Fasteners Are Here Ltd., established in 2009 and headquartered in Chicago, IL, United States, is a full-service fastener distributor and supplier. The company specializes in hard-to-find fasteners, components, and fixings that protect and decorate with high-performance coatings and materials. Its products include black lightning fasteners, screws, and bolts. It also supplies spacers and PTFE, Neoprene, and Polypropylene metric fasteners, and its services include providing immediate quotes and same-day shipping on stock items, as well as providing packaging for private label orders.
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EFC International
Cap Nuts
Distributor Overview
EFC International is headquartered in St. Louis, Missouri. The company is ISO 9001:2015 certified and a global distributor of specialty-engineered fasteners and components for industries including agriculture, automotive aftermarket, energy, furniture, and robotics. The company carries products from brands such as Armada Rubber, TRW, Atlas, and Avery Dennison. The company’s products include self-retaining nuts, cable management, lightweight & powertrain, rivets, and others. The company provides custom designs upon request such as carbon fiber and composite fastening.
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Cap Nut Manufacturer Ranking
*Including some distributors, etc.Ranking as of November 2024
Derivation Method| Rank | Company | Click Share |
|---|---|---|
| 1 | BMB Fasteners |
5.6%
|
| 2 | Foremost Fastener Company |
5.6%
|
| 3 | Continental Aero |
2.8%
|
| 4 | Peninsula Components, Inc. |
2.8%
|
| 5 | Mudge Fasteners, Inc. |
2.8%
|
| 6 | Fast-Rite International, Inc. |
2.8%
|
| 7 | Key Fasteners Corporation |
2.8%
|
| 8 | Midwest Screw Products, Inc. |
2.8%
|
| 9 | StockCap |
2.8%
|
| 10 | Product Components Corporation |
2.8%
|
Derivation Method
The ranking is calculated based on the click share within the cap nut page as of November 2024. Click share is defined as the total number of clicks for all companies during the period divided by the number of clicks for each company.Number of Employees
Newly Established Company
- Hebei Chengyi Engineering Materials Co., Ltd.: 2001 (23 years ago)
- Mahabali Steel Centre: 1998 (26 years ago)
- Jeng Bright International Corp.: 1990 (34 years ago)
Company with a History
- RAMPA TEC Inc.: 1907 (117 years ago)
- S.W. Anderson: 1926 (98 years ago)
- PennEngineering: 1942 (82 years ago)
Cap Nut Manufacturers in United States
*Including some distributors, etc.
- Wyandotte Industries, Inc.
- White Racker Co.
- Suncor Stainless, Inc.
- StockCap
- Stock Drive Products/Sterling Instrument - SDP/SI
- Product Components Corporation
- PennEngineering
- Peninsula Components, Inc.
- Midwest Screw Products, Inc.
- Keystone Fastening Technologies, Inc.
- Key Fasteners Corporation
- J.W. Winco, Inc.
- FM Stainless, LLC
- Component Hardware Group, Inc.
- Chicago Nut & Bolt, Inc.
- C. Sherman Johnson Co., Inc.
- BMB Fasteners
- Bay Bolt
- Arlington Fastener Company
- Western States Hardware
- Texas Specialty Fasteners
- Sales Systems Ltd.
- S.W. Anderson
- Rainbow Nut and Bolt, Inc.
- Production Materials, Inc.
- Paramount Fasteners Inc.
- OneMonroe (Monroe Engineering Products)
- Nova Fasteners Co., Inc.
- National Bolt & Nut Corp.
- Mudge Fasteners, Inc.
- Mil-Spec Fasteners Corp.
- MF Supply
- Kinter (K International, Inc.)
- Interstate Screw Corporation
- Hi-Tech Fasteners, Inc.
- Foremost Fastener Company
- Fasco Inc.
- Engineered Source, Inc.
- Doran Specialties
- Continental Aero
- Coburn-Myers Fastening Systems, Inc.
- Bolt Products Inc.
- Associated Fastening Products, Inc.
- Armour Screw Co.
- Anchor Bolt & Supply Co.
- All-Pro Fasteners, Inc.
- KD Fasteners, Inc.
- HydraCheck
- Dunham Rubber & Belting Corporation
- Circle Valve Technologies Inc.
Global Distribution of Cap Nut Manufacturers by Country
*Including some distributors, etc.
| Country | Number of Companies | Share (%) |
|---|---|---|
United States of America
|
50 | 78.1% |
India
|
6 | 9.4% |
China
|
5 | 7.8% |
Germany
|
1 | 1.6% |
United Kingdom
|
1 | 1.6% |
Taiwan
|
1 | 1.6% |
List of Cap Nut Products
4 products are listed.
Maru Emmako Co., Ltd.
High intensity resin & composite screw product Joy bolt / JOY bag nut / JOY cap
30+ people viewing
■ Complex products between high -strength plastic and metal ・ Light, weather resistance and corrosion resistance, which is the feature of plastic ...
