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-8138 N/A 1/2-20 N/A 1 1/4 in N/A 1 1/4 in N/A Grade 5 N/A Zinc/Clear N/A Fine Thread
pn-8139 N/A 1/2-20 N/A 1 1/2 in N/A 1 1/4 in N/A Grade 5 N/A Zinc/Clear N/A Fine Thread
pn-8140 N/A 1/2-20 N/A 1 3/4 in N/A 1 1/4 in N/A Grade 5 N/A Zinc/Clear N/A Fine Thread
pn-8141 N/A 1/2-20 N/A 2 in N/A 1 1/4 in N/A Grade 5 N/A Zinc/Clear N/A Fine Thread
pn-8142 N/A 1/2-20 N/A 2 1/4 in N/A 1 1/4 in N/A Grade 5 N/A Zinc/Clear N/A Fine Thread
pn-8143 N/A 1/2-20 N/A 2 1/2 in N/A 1 1/4 in N/A Grade 5 N/A Zinc/Clear N/A Fine Thread
pn-8144 N/A 1/2-20 N/A 2 3/4 in N/A 1 1/4 in N/A Grade 5 N/A Zinc/Clear N/A Fine Thread
pn-8145 N/A 1/2-20 N/A 3 in N/A 1 1/4 in N/A Grade 5 N/A Zinc/Clear N/A Fine Thread
pn-8146 N/A 1/2-20 N/A 3 1/4 in N/A 1 1/4 in N/A Grade 5 N/A Zinc/Clear N/A Fine Thread
pn-8147 N/A 1/2-20 N/A 3 1/2 in N/A 1 1/4 in N/A Grade 5 N/A Zinc/Clear N/A Fine Thread
pn-8148 N/A 1/2-20 N/A 3 3/4 in N/A 1 1/4 in N/A Grade 5 N/A Zinc/Clear N/A Fine Thread
pn-8149 N/A 1/2-20 N/A 4 in N/A 1 1/4 in N/A Grade 5 N/A Zinc/Clear N/A Fine Thread
pn-8150 N/A 1/2-20 N/A 4 1/2 in N/A 1 1/4 in N/A Grade 5 N/A Zinc/Clear N/A Fine Thread
pn-8151 N/A 1/2-20 N/A 5 in N/A 1 1/4 in N/A Grade 5 N/A Zinc/Clear N/A Fine Thread
pn-8152 N/A 1/2-20 N/A 5 1/2 in N/A 1 1/4 in N/A Grade 5 N/A Zinc/Clear N/A Fine Thread
pn-8153 N/A 1/2-20 N/A 6 in N/A 1 1/2 in N/A Grade 5 N/A Zinc/Clear N/A Fine Thread
pn-8154 N/A 1/2-20 N/A 6 1/2 in N/A 1 1/2 in N/A Grade 5 N/A Zinc/Clear N/A Fine Thread
pn-8155 N/A 1/2-20 N/A 7 in N/A 1 1/2 in N/A Grade 5 N/A Zinc/Clear N/A Fine Thread
pn-8156 N/A 1/2-20 N/A 7 1/2 in N/A 1 1/2 in N/A Grade 5 N/A Zinc/Clear N/A Fine Thread
pn-8157 N/A 1/2-20 N/A 8 in N/A 1 1/2 in N/A Grade 5 N/A Zinc/Clear N/A Fine Thread
pn-8158 N/A 1/2-20 N/A 8 1/2 in N/A 1 1/2 in N/A Grade 5 N/A Zinc/Clear N/A Fine Thread
pn-8159 N/A 1/2-20 N/A 9 in N/A 1 1/2 in N/A Grade 5 N/A Zinc/Clear N/A Fine Thread
pn-8160 N/A 1/2-20 N/A 9 1/2 in N/A 1 1/2 in N/A Grade 5 N/A Zinc/Clear N/A Fine Thread
pn-8161 N/A 1/2-20 N/A 10 in N/A 1 1/2 in N/A Grade 5 N/A Zinc/Clear N/A Fine Thread
pn-8162 N/A 1/2-20 N/A 10 1/2 in N/A 1 1/2 in N/A Grade 5 N/A Zinc/Clear N/A Fine Thread
Unit of Measure
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