Hex Bolts A307 and A307B

Diamond Bolt Inc keeps ASTM A307 and A307B hex bolts in stock. We also stock the ASTM A563 Hex Nuts (Heavy and Finish) to go with these bolts. ASTM A307 Sizes & Specifications The ASTM A307 specification covers carbon steel bolts, rods/studs and anchor bolts ranging from 1/4″ through 4″ diameter. This is your everyday, [...]