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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  • Meeting ANSI B18.2.1 dimensional specifications, our series of grade 5, 1/4 - 5/8 inch diameter hex head cap screws feature rolled threads.
  • Our Grade 5, 1/4 - 5/8 inch diameter hex head cap screws meet SAE J429 standards for both material and physical properties for sizes measuring between 1/4 - 1 1/2 inches. Additionally, for sizes measuring between 1 3/4 - 2 inches, our 1/4 - 5/8 inch diameter hex head cap screws meet ASTM A354 Grade BD standards for both material and physical properties.
  • Our 1/4 - 5/8 inch diameter hex head cap screws are secure fasteners for both construction and machinery parts.
  • 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-7588 N/A 1/4-20 N/A 7 in N/A 1 in N/A Grade 5 N/A Plain N/A Coarse Thread
pn-7589 N/A 1/4-20 N/A 7 1/2 in N/A 1 in N/A Grade 5 N/A Plain N/A Coarse Thread
pn-7590 N/A 1/4-20 N/A 8 in N/A 1 in N/A Grade 5 N/A Plain N/A Coarse Thread
pn-7591 N/A 1/4-20 N/A 1/2 in N/A 3/4 in N/A Grade 5 N/A Zinc/Clear N/A Coarse Thread
pn-7592 N/A 1/4-20 N/A 5/8 in N/A 3/4 in N/A Grade 5 N/A Zinc/Clear N/A Coarse Thread
pn-7593 N/A 1/4-20 N/A 3/4 in N/A 3/4 in N/A Grade 5 N/A Zinc/Clear N/A Coarse Thread
pn-7594 N/A 1/4-20 N/A 7/8 in N/A 3/4 in N/A Grade 5 N/A Zinc/Clear N/A Coarse Thread
pn-7595 N/A 1/4-20 N/A 1 in N/A 3/4 in N/A Grade 5 N/A Zinc/Clear N/A Coarse Thread
pn-7596 N/A 1/4-20 N/A 1 1/4 in N/A 3/4 in N/A Grade 5 N/A Zinc/Clear N/A Coarse Thread
pn-7597 N/A 1/4-20 N/A 1 1/2 in N/A 3/4 in N/A Grade 5 N/A Zinc/Clear N/A Coarse Thread
pn-7598 N/A 1/4-20 N/A 1 3/4 in N/A 3/4 in N/A Grade 5 N/A Zinc/Clear N/A Coarse Thread
pn-7599 N/A 1/4-20 N/A 2 in N/A 3/4 in N/A Grade 5 N/A Zinc/Clear N/A Coarse Thread
pn-7600 N/A 1/4-20 N/A 2 1/4 in N/A 3/4 in N/A Grade 5 N/A Zinc/Clear N/A Coarse Thread
pn-7601 N/A 1/4-20 N/A 2 1/2 in N/A 3/4 in N/A Grade 5 N/A Zinc/Clear N/A Coarse Thread
pn-7602 N/A 1/4-20 N/A 2 3/4 in N/A 3/4 in N/A Grade 5 N/A Zinc/Clear N/A Coarse Thread
pn-7603 N/A 1/4-20 N/A 3 in N/A 3/4 in N/A Grade 5 N/A Zinc/Clear N/A Coarse Thread
pn-7604 N/A 1/4-20 N/A 3 1/4 in N/A 3/4 in N/A Grade 5 N/A Zinc/Clear N/A Coarse Thread
pn-7605 N/A 1/4-20 N/A 3 1/2 in N/A 3/4 in N/A Grade 5 N/A Zinc/Clear N/A Coarse Thread
pn-7606 N/A 1/4-20 N/A 3 3/4 in N/A 3/4 in N/A Grade 5 N/A Zinc/Clear N/A Coarse Thread
pn-7607 N/A 1/4-20 N/A 4 in N/A 3/4 in N/A Grade 5 N/A Zinc/Clear N/A Coarse Thread
pn-7608 N/A 1/4-20 N/A 4 1/2 in N/A 3/4 in N/A Grade 5 N/A Zinc/Clear N/A Coarse Thread
pn-7609 N/A 1/4-20 N/A 5 in N/A 3/4 in N/A Grade 5 N/A Zinc/Clear N/A Coarse Thread
pn-7610 N/A 1/4-20 N/A 5 1/2 in N/A 3/4 in N/A Grade 5 N/A Zinc/Clear N/A Coarse Thread
pn-7611 N/A 1/4-20 N/A 6 in N/A 1 in N/A Grade 5 N/A Zinc/Clear N/A Coarse Thread
pn-7612 N/A 1/4-20 N/A 6 1/2 in N/A 1 in N/A Grade 5 N/A Zinc/Clear N/A Coarse Thread
Unit of Measure
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