National Bolt & Nut Corp.
MiniTec GmbH & Co. KG
MF Supply
KD Fasteners, Inc.
Doran Specialties
Coburn-Myers Fastening Systems, Inc.
Big Bolt
Benchmark Fasteners
Aspen Fasteners Inc.
American Fastener Technologies Corporation

10 Square Nut Manufacturers in 2024

This section provides an overview for square nuts as well as their applications and principles. Also, please take a look at the list of 10 square nut manufacturers and their company rankings. Here are the top-ranked square nut companies as of March, 2024: 1.KD Fasteners, Inc., 2.Coburn-Myers Fastening Systems, Inc., 3.MF Supply.

Table of Contents

List of 10 Square Nut Manufacturers

*Including some distributors, etc.

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  • United States of America
  • Germany
    • Big Bolt
      • United States of America Address: 140 COVINGTON DRIVE, BLOOMINGDALE, Illinois, United States of America

      Manufacturer Overview

      Big Bolt is a Bloomingdale, Illinois-based manufacturer and supplier of structural fasteners founded in 1977. The company produces a large selection of studs, bolts, screws, washers, and rods for use in various industrial applications in agriculture, construction, aerospace, and transportation. The company also produces specialty units including metric fasteners sized and measured to metric system standardizations, and ACME fasteners with trapezoidal threadings for use in motion control and power transmission. Custom engineering and secondary services provided by Big Bolt include milling, threading, heat treating, and plating.

    • American Fastener Technologies Corporation
      • American Fastener Technologies Corporation
        SQUARE NUTS

      • United States of America Address: 9 Frontier Drive Gibsonia, Pennsylvania, United States of America

      Company Overview

      American Fastener Technologies Corporation (AFTC) is a manufacturer of precision-made industrial fasteners based in Gibsonia, Pennsylvania. Established in 1983, the company’s product portfolio includes masonry anchors, self-drilling screws, structural fasteners, and threaded rods. These primarily supply the military and defense, transportation, energy, and construction industries. The company stocks various materials and alloys tested to meet SAE, ASTM, and ISO standards. These are used in conjunction with AFTC services offered to clients including fabrication, testing, coating, and packaging of custom fasteners.

    • KD Fasteners, Inc.
      • KD Fasteners, Inc.
        WELD NUTS

      • United States of America Address: 1440 Jeffrey DrAddison, Illinois, United States of America

      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.

    • National Bolt & Nut Corp.
      • United States of America Address: 125 E. Commerce Drive, Schaumburg, Illinois, United States of America

      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.

    • MF Supply
      • United States of America Address: 164, Garibaldi Avenue, Lodi, New Jersey, United States of America

      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.

    • Coburn-Myers Fastening Systems, Inc.
      • Coburn-Myers Fastening Systems, Inc.
        Square Nuts

      • United States of America Address: 3211 West 9th Street - Trainer, Pennsylvania, United States of America

      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.

    • Doran Specialties
      • United States of America Address: 22855 Savi Ranch Pkwy. Unit D, Yorba Linda, California, United States of America

      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.

    • Benchmark Fasteners
      • United States of America Address: 270 Commonwealth Dr. Carol Stream, Illinois, United States of America

      Company Overview

      Benchmark Fasteners, Inc. is based out of Carol Stream, Illinois. The company is a manufacturer and distributor of various varieties of fasteners and fastener-related items including drill bits, driver bits, and cable ties. The company’s product lines include standard and stainless-steel fasteners and socket screws in imperial and metric measurements. Custom options are also available for screw machine parts, stampings, CNC precision machine parts, and cold-headed parts. Additional services the company provides include poly-bagging for large or varied orders, technical assistance before and after ordering, secondary options customization of threading and plating and same-day shipping for in-stock products.

    • MiniTec GmbH & Co. KG
      • Germany Address: MiniTec Allee 1, Schönenberg-Kübelberg, Germany

      Manufacturer Overview

      MiniTec GmbH & Co. KG, launched in 1986 and based in Schönenberg-Kübelberg, Germany, is a manufacturer of profile and linear systems. The company crafts aluminum profiles, special profiles, linear modules, sliding guides, and height-adjustable tables. It also makes mini conveyor belts, protection systems, steel shafts, and industry products. Whenever particularly lightweight profiles are required, its aluminum profiles in grid size 30 are used, e.g. for the construction of protective enclosures and covers, or for bracing.

    • Aspen Fasteners Inc.

      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.

Square Nut Manufacturer Ranking

*Including some distributors, etc.

Derivation Method

The ranking is calculated based on the click share within the square nut page as of March 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

  1. KD Fasteners, Inc.: 1987 (37 years ago)
  2. MiniTec GmbH & Co. KG: 1986 (38 years ago)
  3. American Fastener Technologies Corporation: 1983 (41 years ago)

Company with a History

  1. Coburn-Myers Fastening Systems, Inc.: 1981 (43 years ago)
  2. American Fastener Technologies Corporation: 1983 (41 years ago)
  3. MiniTec GmbH & Co. KG: 1986 (38 years ago)

Square Nut Manufacturers in United States

*Including some distributors, etc.

Global Distribution of Square Nut Manufacturers by Country

*Including some distributors, etc.

Country Number of Companies Share (%)
United States of America United States of America 8 88.9%
Germany Germany 1 11.1%

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