USA Grade 8 Hex Head Cap Screw, Zinc Yellow

Hex head cap screws made in the USA fall under The American Society of Mechanical Engineers’ (ASME) standard category “Bolts, Studs and Threaded Rod”.  These bolts are fully threaded or partially threaded depending on the length with a six sided, hexagonal head.  

Grade 8

Grade 8 hex head cap screws have the following properties.
Size  Tensile  Core hardness
 1/4" - 1 1/2"  150,000  PSI  Rockwell C33 - C39

Six evenly spaced lines on the head of the bolt indicate the grade 8 rating.

Contact AALL AMERICAN Fasteners for answers to your Grade 8 bolt questions - 877-791-4426.

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