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This section provides an overview for eye bolts as well as their applications and principles. Also, please take a look at the list of 12 eye bolt manufacturers and their company rankings. Here are the top-ranked eye bolt companies as of April, 2025: 1.Murphy Industrial Products, Inc..
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Eye (Denden) bolt, also called hinged bolt or lot bolt, refers to a bolt whose bolt head is shaped like a ring. It is said that they are called Denden bolts because they look like toy Denden drums.
Although they are similar in shape to eyebolts, Denden bolts have a smaller ring on the head and cannot be used for suspending like eyebolts.
Denden bolt materials include iron, stainless steel, S45C, SUS316L, SNB7, and titanium.
Denden bolts, also known as hinge bolts or swing bolts, are used as adjusters. They are set horizontally and secured by inserting a rod or pin into the hole, with the threaded part swinging.
It can also be used for lifting objects, but this is not its intended use. Since it is not a bolt for lifting, it is not required to be strong even by the standard.
Incidentally, it cannot be used for hanging purposes. When you want to hang an object by hooking it in a hole, use an eyebolt.
Denden bolts are available in a variety of thread diameters and lengths, and are highly versatile bolts that can be used for suspending lightweight objects in addition to adjusters (although this use is not recommended).
Although steel ones are inexpensive and easy to obtain, stainless steel ones are superior in terms of strength. However, there are few situations where special strength is required for Denden bolts, and it can be said that the demand for stainless steel Denden bolts is increasing due to their superior corrosion resistance and hygiene.
The surface treatment includes common plating such as Uni-Chrome (bright chromate plating) and Trivalent White (trivalent chromium chromate plating).
Eye bolts, which have a similar shape, are used for the purpose of lifting heavy objects, so their load capacity must be checked as an important safety component. However, since Denden bolts are not used for lifting and suspending purposes, there is no such standard. Although Denden bolts can be used as a substitute for eyebolts in some situations, they are only used for lifting objects that are light enough, and are not recommended since they may break.
*Including some distributors, etc.
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NBS Corporation is a wholesale distributor of industrial fasteners established in 1998 and located in Vernon, California, USA. The company’s products include hex flange bolts for applications where a wide bearing surface is needed for distributing load, and dowel pins for precise alignment when joining two or more components together. It also offers 12-point cap screws which allow for greater torque in performance applications such as in automotive racing or heavy machinery. The company mainly serves clients in the industrial manufacturing and engineering sectors.
EMC Fasteners and Tools, founded in 1966 and based in Michigan, United States, is a manufacturer of various electrical, plumbing, and HVAC products. The company manufactures products in several categories, such as fasteners, electrical, plumbing, tools and accessories, a series of work gloves, and safety products. It manufactures a line of nuts, bolts, washers, screws, and all types of fasteners. It also produces batteries, cable ties, a 4-way stem key, acid brushes, aluminum ducts, outlet adapters, and more. The company serves customers all throughout the United States, including Michigan, Ohio, Indiana, Kentucky, and Illinois.
Jergens, Inc. established in Cleveland, OH in 1942 is a manufacturer of Workholding, Lifting and Specialty Fasteners products. Their product portfolio includes clamps, vises, fixtures, and chucks, used for precise and stable workpiece positioning in machining and assembly processes. The company serves industries Renewable Energy, Mining and Exploration, Marine and Offshore, Electronics and Semiconductors and Telecommunications. The company has ISO 9001:2015 and AS9100:2016 certification and have global delivery and customer support..
TE-CO Workholding was founded in 1926 and is headquartered in Union, Ohio. The company is a manufacturer of work-holding technology and tooling components sold nationally and internationally through distributors. The company’s product segments include Tooling Components, Tooled Vise WOrkholding Systems, Spring Loaded Devices, Clamping Levers, and CMM Picturing & Inspection Components. The Company also offers 2D and 3D CAD models, drawings, and detailed information in various data formats to assist customers in choosing and modifying designs for their needs.
Lowy Enterprises, Inc. is a manufacturer and wholesale distributor of hardware products established in 1970 and located in Rancho Dominguez, California, USA. The company offers metal and plastic fasteners for securing modular components, hot cutters for precision cutting of workpieces, and restraint hardware components for safety harnesses. It also offers nylon, polypropylene, and tubular webbing models for standard as well as MILSPEC applications. The company’s products are used mainly by auto racing garages, aviation crews, private military contractors.
Xiamen Landee Industries Co. Ltd., established in 1994, is an industrial components manufacturer based in Xiamen, China. It releases a new flow control model on a monthly basis and produces over 50 types of compononts, including pipes, valves, flanges, pipe fittings, and gaskets, in over 20 materials and 400 sizes. The company's products are used in the oil rig, gas, chemical, pharmacuetical, and paper-making industries, and it complies with API, CE, and ISO 9001:2008 certification requirements.
Gray Tools Canada Inc. is a manufacturer of hand tools that was established in 1912 in Toronto, Ontario, Canada. The company is one of only a handful of industrial-grade tool manufacturers in Canada. It produces a wide range of ruggedized tools, including pliers, wrenches, and chisels. The company’s products are used in a wide range of industries including the automotive, mining, and manufacturing industries. Some of its notable clients include Lockheed Martin, General Motors, and Magna.
RUD Ketten Rieger & Dietz GmbH u. Co. KG, founded in 1875 and headquartered in Aalen, Germany, is a manufacturer of chain systems and components. The company is ISO 9001, 14001, and 50001-certified, approved as an aviation company for Bundeswehr aviation devices, and stocks sling and lashing systems and conveyor technologies. As a certified military contractor for aircraft systems and equipment, the company provides lashing systems for transporting military equipment according to international standards.
TFC Europe Ltd, founded in the UK in 1981, is a supplier of engineering fastener products. The company offers an extensive selection of bolts and nuts in various sizes, materials, and grades to accommodate different mechanical and construction projects, a diverse range of screws, including machine screws, wood screws, self-tapping screws, and concrete anchors and wall anchors, designed to securely fasten objects to various surfaces. It has ISO 9001:2015 and Aerospace AS9100d & AS9120 certifications.
Murphy Industrial Products, Inc. is a wholesale supplier of tie down, hauling, and lifting equipment that was established in Houston, Texas, USA, in 1968. The company offers cable or wire rope, block and pulley sets, and beam clamps for suspending or securing fixtures. It also offers load binders, lifting straps, and tie down chains for securing cargo onto heavy duty vehicles. The company’s products are used mainly by clients in the construction, transportation, and oil and gas industries.
Ranking as of April 2025
Derivation Method| Rank | Company | Click Share |
|---|---|---|
| 1 | Murphy Industrial Products, Inc. |
100.0%
|
Derivation Method
The ranking is calculated based on the click share within the eye bolt page as of April 2025. 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
Company with a History
*Including some distributors, etc.
*Including some distributors, etc.
| Country | Number of Companies | Share (%) |
|---|---|---|
|
United States of America
|
7 | 77.8% |
|
China
|
1 | 11.1% |
|
United Kingdom
|
1 | 11.1% |
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