National Bolt & Nut Corporation
National Bolt & Nut Corporation
125 E. Commerce Drive
Schaumburg, IL 60173
Toll Free: 888.307.8811
Phone: 630.307.8800
Fax: 630.307.8870
Email: info@nationalbolt.com
Website: www.nationalbolt.com
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  • National Bolt & Nut offers a series of 1/4 - 5/8 inch diameter hex head cap screws that meet ANSI B18.2.1 dimensional specifications. Our 1/4 - 5/8 inch diameter hex head cap screws are reliable fasteners for both construction and machinery parts.
  • All our premium 1/4 - 5/8 inch diameter hex head cap screws feature rolled threads. Our hex head cap screws measuring 1/4 - 1 1/2 inches meet SAE J429 standards for both material and physical properties, while our hex head cap screws measuring 1 3/4 - 2 inches (equivalent to Grade 8) meet ASTM A354 Grade BD standards for both material and physical properties.
  • Other materials and finishes available. For further information, call or send an information request.
Hex Head Cap Screw
Unit of Measure
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Item #

Thread Size

Length

Thread Length

Grade/Class

Finish

Thread Style

pn-5615 N/A 1/4-20 N/A 6 1/2 in N/A 1 in N/A Grade 8 N/A Plain N/A Coarse Thread
pn-5616 N/A 1/4-20 N/A 7 in N/A 1 in N/A Grade 8 N/A Plain N/A Coarse Thread
pn-5617 N/A 1/4-20 N/A 7 1/2 in N/A 1 in N/A Grade 8 N/A Plain N/A Coarse Thread
pn-5618 N/A 1/4-20 N/A 8 in N/A 1 in N/A Grade 8 N/A Plain N/A Coarse Thread
pn-5619 N/A 1/4-20 N/A 1/2 in N/A 3/4 in N/A Grade 8 N/A Zinc/Yellow N/A Coarse Thread
pn-5620 N/A 1/4-20 N/A 5/8 in N/A 3/4 in N/A Grade 8 N/A Zinc/Yellow N/A Coarse Thread
pn-5621 N/A 1/4-20 N/A 3/4 in N/A 3/4 in N/A Grade 8 N/A Zinc/Yellow N/A Coarse Thread
pn-5622 N/A 1/4-20 N/A 7/8 in N/A 3/4 in N/A Grade 8 N/A Zinc/Yellow N/A Coarse Thread
pn-5623 N/A 1/4-20 N/A 1 in N/A 3/4 in N/A Grade 8 N/A Zinc/Yellow N/A Coarse Thread
pn-5624 N/A 1/4-20 N/A 1 1/4 in N/A 3/4 in N/A Grade 8 N/A Zinc/Yellow N/A Coarse Thread
pn-5625 N/A 1/4-20 N/A 1 1/2 in N/A 3/4 in N/A Grade 8 N/A Zinc/Yellow N/A Coarse Thread
pn-5626 N/A 1/4-20 N/A 1 3/4 in N/A 3/4 in N/A Grade 8 N/A Zinc/Yellow N/A Coarse Thread
pn-5627 N/A 1/4-20 N/A 2 in N/A 3/4 in N/A Grade 8 N/A Zinc/Yellow N/A Coarse Thread
pn-5628 N/A 1/4-20 N/A 2 1/4 in N/A 3/4 in N/A Grade 8 N/A Zinc/Yellow N/A Coarse Thread
pn-5629 N/A 1/4-20 N/A 2 1/2 in N/A 3/4 in N/A Grade 8 N/A Zinc/Yellow N/A Coarse Thread
pn-5630 N/A 1/4-20 N/A 2 3/4 in N/A 3/4 in N/A Grade 8 N/A Zinc/Yellow N/A Coarse Thread
pn-5631 N/A 1/4-20 N/A 3 in N/A 3/4 in N/A Grade 8 N/A Zinc/Yellow N/A Coarse Thread
pn-5632 N/A 1/4-20 N/A 3 1/4 in N/A 3/4 in N/A Grade 8 N/A Zinc/Yellow N/A Coarse Thread
pn-5633 N/A 1/4-20 N/A 3 1/2 in N/A 3/4 in N/A Grade 8 N/A Zinc/Yellow N/A Coarse Thread
pn-5634 N/A 1/4-20 N/A 3 3/4 in N/A 3/4 in N/A Grade 8 N/A Zinc/Yellow N/A Coarse Thread
pn-5635 N/A 1/4-20 N/A 4 in N/A 3/4 in N/A Grade 8 N/A Zinc/Yellow N/A Coarse Thread
pn-5636 N/A 1/4-20 N/A 4 1/2 in N/A 3/4 in N/A Grade 8 N/A Zinc/Yellow N/A Coarse Thread
pn-5637 N/A 1/4-20 N/A 5 in N/A 3/4 in N/A Grade 8 N/A Zinc/Yellow N/A Coarse Thread
pn-5638 N/A 1/4-20 N/A 5 1/2 in N/A 3/4 in N/A Grade 8 N/A Zinc/Yellow N/A Coarse Thread
pn-5639 N/A 1/4-20 N/A 6 in N/A 1 in N/A Grade 8 N/A Zinc/Yellow N/A Coarse Thread
Unit of Measure
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