we have difference nuts which according ANSI/ASME, DIN, BS, AS, GB, JIS and ISO standards.specifacation:A194-2H2HM(Gr.7, 7M, 4)Structure nuts:A563(Gr.A, B, C, DH)Light nuts:ANSI Gr.2, 5, 8DIN6915DIN93 ... ...
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