I have for sale hundreds of 5/16-inch hex head shoulder bolts. Overall length is about 41 millimeters, the shoulder is 13 millimeters long by 15.8 millimeters in diameter. The bolt head is 22 millimeters in diameter with threaded part 19.1 millimeters long and 12.5 millimeters in diameter. Thread count is 1/2 inch with a 1.3 pitch. Asking 50 cents each or 40 cents each if you buy the lot. Call or text Gary at show contact info
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