5/16″-18×5-1/2″ Hex Head Cap Screw Grade 8 Yellow Zinc

Item Number: HB031C550Z8

$1.34

5/16-18×5-1/2 NC HEX HD C/S GR8 ZY

234 in stock
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Note: The image displayed is a representation of the product. Product dimensions, finish, head type, and thread length may differ from picture. Products are guaranteed to meet the specification to which they are manufactured. Please email us with any questions.

Product Description

Made from Grade 8 steel, these screws can be used in high-stress applications, such as valves, pumps, motors, and automotive suspension systems. They are at least 25% stronger than medium-strength steel screws. Grade 8 steel hex head screws are marked with six radial lines. Length is measured from under the head. Zinc yellow-chromate plated steel screws resist corrosion in wet environments.

Features:

Thread Direction Right hand
Head Width 1/2″
Head Height 7/32″
Tensile Strength 150,000 psi
Rockwell Hardness C33
Specifications Met ASME B18.2.1, SAE J429
RoHS Not Compliant

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