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This section provides an overview for self-tapping screws as well as their applications and principles. Also, please take a look at the list of 10 self-tapping screw manufacturers and their company rankings. Here are the top-ranked self-tapping screw companies as of March, 2025: 1.Topura Co., Ltd., 2.Prince Fastener, 3.Mutual Screw & Supply.
Table of Contents
Self-Tapping Screws are screws that can form threads when they are screwed in, even if the female threads (wood, metal, etc.) do not have threads.
Since no processing of the mating side (female thread side) is required, this type of screw is very efficient in terms of work efficiency and cost.
Self-Tapping Screws are mainly used to fasten wood, steel plate, aluminum alloy plate, and resin.
Self-Tapping Screws can be used for a wide variety of applications as long as the material is thin. Self-Tapping Screws are available in six different thread shapes, and it is important to select one depending on the material to be fastened.
Self-Tapping Screws are characterized by the fact that they can be used to fasten different parts together by simply screwing them into a pre-drilled hole to form a female thread. With ordinary screws, a pre-drilled hole and tapping (threading) are required to create a female thread in advance.
Self-Tapping Screws are widely used by professionals and DIYers alike because they require less work to fasten two parts and have stronger fastening force. On the other hand, once a screw is tightened, it is difficult to loosen.
The disadvantage is that if the screw is not tightened properly, the shape of the screw is memorized on the female thread.
The difference between a drill screw and a threaded screw is whether or not a pre-drilled hole is required. Drill screws have a drilled tip and can be pre-drilled, tapped, and tightened in a single process, and are mainly used to fasten steel and other metals.
Self-Tapping Screws can be used for a wide range of materials such as wood, steel plates, aluminum alloy plates, and resin, while wood screws are, as the name suggests, for wood only. This is because wood contains moisture, and as it dries out over time, the wood becomes thinner, causing it to loosen and come off with regular self-tapping screws.
Wood screws are not threaded at the bottom of the neck and are slightly thicker, so that they do not loosen and can be securely fastened even if the wood becomes thin.
There are three types of self-tapping screw heads: pan head, countersunk head, and truss head.
There are various other types of self-tapping screws, such as Bind Head Tapping Screws and Round Self-Tapping Screws.
Self-Tapping Screws are used to tighten screws, but they can also be used to tighten and remove screws. Insufficient torque may be applied when fastening the screw, and the self-tapping screw may not seat.
Conversely, applying too much tightening torque in an attempt to solve this problem can easily lead to various problems, such as breaking the fastening object or self-tapping screw itself.
To prevent problems before they occur, the appropriate size of the pre-hole, based on conditions such as the outside diameter of the self-tapping screw, is listed on the screw package or other information.
Repeated installation and removal of self-tapping screws will gradually reduce the fastening strength and eventually destroy the screw holes. In addition, the axial force may also gradually decrease as the material being tightened undergoes changes over time due to vibration or heat, so it is necessary to conduct tests under a variety of conditions and consider countermeasures.
*Including some distributors, etc.
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Mutual Screw & Supply based in Rochelle Park, New Jersey, USA and was established in 1947 is a supplier and distributor of industrial fasteners and related accessories. The products include screws, nuts, bolts, washers, rivets, drill bits, tape, and more. The products are sourced from world-class brands such as 3M, Starrett, and Irwin. The products are used by various industries such as furniture, electrical, construction, and automotive. The company offers custom packaging, labeling, and online sales. It has a status of product quality and customer service.
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.
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.
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.
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.
Nittoseiko Co. Ltd, established in 1938 at Kyoto, Japan is a manufacturer of screw driving components and screw fastening products. The company specializes in manufacturing advanced solutions for fastening, assembly as well as inspection technology. The products list involves loose proof screws, special cold forged parts, automatic screw driving machines, screw driving robots and measuring instrumentation systems. The products are used in applications such as automobiles, home appliances, telecommunications, electronic products and machinery. These fastening and assembly systems make it easier to assemble various components and also bond them together in a robust way.
Prince Fastener is a professional fastener manufacturer situated in Shanghai and Nan-tong Province, China. Its product line includes drywall screws, chipboard screws, machine screws, self-tapping screws, and self-drilling screws. The company utilizes advanced manufacturing equipment, such as head making machines, thread rolling machines, net furnaces, and various inspection tools like micro hardness testers and microstructure testers. The company has earned ISO (International Quality System) certification, attesting to its adherence to quality and standardized production processes.
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.
Ranking as of March 2025
Derivation Method| Rank | Company | Click Share |
|---|---|---|
| 1 | Topura Co., Ltd. |
23.8%
|
| 2 | Prince Fastener |
11.3%
|
| 3 | Mutual Screw & Supply |
11.3%
|
| 4 | Coburn-Myers Fastening Systems, Inc. |
11.3%
|
| 5 | Doran Specialties |
11.3%
|
| 6 | Texas Specialty Fasteners |
10.0%
|
| 7 | Bolt Products Inc. |
7.5%
|
| 8 | NITTOSEIKO CO., LTD. |
7.5%
|
| 9 | G-Fast Distribution Inc |
5.0%
|
| 10 | Crown Precision Industry Co., Ltd. |
1.3%
|
Derivation Method
The ranking is calculated based on the click share within the self-tapping screw page as of March 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
|
5 | 55.6% |
|
Japan
|
3 | 33.3% |
|
China
|
1 | 11.1% |
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