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-6215 N/A 1/2-20 N/A 9 1/2 in N/A 1 1/2 in N/A Grade 8 N/A Zinc/Yellow N/A Fine Thread
pn-6216 N/A 1/2-20 N/A 10 in N/A 1 1/2 in N/A Grade 8 N/A Zinc/Yellow N/A Fine Thread
pn-6217 N/A 1/2-20 N/A 10 1/2 in N/A 1 1/2 in N/A Grade 8 N/A Zinc/Yellow N/A Fine Thread
pn-6218 N/A 1/2-20 N/A 11 in N/A 1 1/2 in N/A Grade 8 N/A Zinc/Yellow N/A Fine Thread
pn-6219 N/A 1/2-20 N/A 11 1/2 in N/A 1 1/2 in N/A Grade 8 N/A Zinc/Yellow N/A Fine Thread
pn-6220 N/A 1/2-20 N/A 12 in N/A 1 1/2 in N/A Grade 8 N/A Zinc/Yellow N/A Fine Thread
pn-6221 N/A 1/2-20 N/A 12 1/2 in N/A 1 1/2 in N/A Grade 8 N/A Zinc/Yellow N/A Fine Thread
pn-6222 N/A 1/2-20 N/A 13 in N/A 1 1/2 in N/A Grade 8 N/A Zinc/Yellow N/A Fine Thread
pn-6223 N/A 1/2-20 N/A 13 1/2 in N/A 1 1/2 in N/A Grade 8 N/A Zinc/Yellow N/A Fine Thread
pn-6224 N/A 1/2-20 N/A 14 in N/A 1 1/2 in N/A Grade 8 N/A Zinc/Yellow N/A Fine Thread
pn-6225 N/A 1/2-20 N/A 14 1/2 in N/A 1 1/2 in N/A Grade 8 N/A Zinc/Yellow N/A Fine Thread
pn-6226 N/A 1/2-20 N/A 15 in N/A 1 1/2 in N/A Grade 8 N/A Zinc/Yellow N/A Fine Thread
pn-6227 N/A 1/2-20 N/A 15 1/2 in N/A 1 1/2 in N/A Grade 8 N/A Zinc/Yellow N/A Fine Thread
pn-6228 N/A 1/2-20 N/A 16 in N/A 1 1/2 in N/A Grade 8 N/A Zinc/Yellow N/A Fine Thread
pn-6229 N/A 1/2-20 N/A 16 1/2 in N/A 1 1/2 in N/A Grade 8 N/A Zinc/Yellow N/A Fine Thread
pn-6230 N/A 1/2-20 N/A 17 in N/A 1 1/2 in N/A Grade 8 N/A Zinc/Yellow N/A Fine Thread
pn-6231 N/A 1/2-20 N/A 17 1/2 in N/A 1 1/2 in N/A Grade 8 N/A Zinc/Yellow N/A Fine Thread
pn-6232 N/A 1/2-20 N/A 18 in N/A 1 1/2 in N/A Grade 8 N/A Zinc/Yellow N/A Fine Thread
pn-6233 N/A 1/2-20 N/A 18 1/2 in N/A 1 1/2 in N/A Grade 8 N/A Zinc/Yellow N/A Fine Thread
pn-6234 N/A 1/2-20 N/A 19 in N/A 1 1/2 in N/A Grade 8 N/A Zinc/Yellow N/A Fine Thread
pn-6235 N/A 1/2-20 N/A 19 1/2 in N/A 1 1/2 in N/A Grade 8 N/A Zinc/Yellow N/A Fine Thread
pn-6236 N/A 1/2-20 N/A 20 in N/A 1 1/2 in N/A Grade 8 N/A Zinc/Yellow N/A Fine Thread
pn-6237 N/A 9/16-12 N/A 1 in N/A 1 3/8 in N/A Grade 8 N/A Plain N/A Coarse Thread
pn-6238 N/A 9/16-12 N/A 1 1/4 in N/A 1 3/8 in N/A Grade 8 N/A Plain N/A Coarse Thread
pn-6239 N/A 9/16-12 N/A 1 1/2 in N/A 1 3/8 in N/A Grade 8 N/A Plain N/A Coarse Thread
Unit of Measure
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