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HEX BOLT GRADE A A307

Hex Bolt Grade A, ASTM A307, ASME B18.2.1, ASTM A307 Grade A hex bolts are fasteners made from low or medium carbon steel and used for general engineering applications. They have a six-sided hex head that provides a larger bearing and wrenching surface than machine screws or socket products. This makes them a good choice for heavy-duty and complex applications. Grade A hex bolts are readily available here at Crest Fasteners.
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