Fasteners • Bolts • Large Diameter Bolts

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  • Chicago Nut & Bolt, Inc.

    Chicago Nut & Bolt, Inc. offers offers the following custom made fasteners: tap bolt, structural bolt, square head, socket head cap screw, metric, hex flange, hex cap screw, flat head socket screw, carriage bolt, and 12-point. These fasteners come in part diameters ranging from 1/4" to 4", part lengths up to 72", and hardness ratings ranging from B70 to B100. They are constructed from raw steel, stainless steel, medium carbon steel, medium carbon alloy steel, and low/medium carbon steel materials.

  • The Dyson Corporation

    The Dyson Corporation offers hot forged custom bolts and cap screws in the following configurations: heavy square, square, heavy hex, hex, socket hex cap, wedge, liner/tapered, round head, socket flat countersunk cap, slotted head cap, thin square, etc. These bolts are available in ground, rolled or cut custom/standard threading options, and they can be constructed from nitronic, inconel, monel, titanium, stainless steel, alloy steel, or SBQ/AQ carbon materials.

  • Fastenal

    Fastenal offers hot upset forged bolt blanks. These bolt blanks come in non-standard head styles, sizes up to 2-1/2", lengths up to 20", and right/left-handed threading options. Bolt blanks are produced in an ISO 9001:2000 and A2LA accredited lab.