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Re: AndyMark 3/8-16 x 7 Hex Head Bolt bending
To help in identifying ANSI Graded Bolts. Grade 2 will have no markings on the head other than possibly manufactures code. Grade 5 bolts will have 3 tic/line marks on the head. Grade 8 bolts will have 6 tic/line marks on the head of the bolt.
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