1/2-13X6 GR8 HEX CAP SCR YZ SAE J429 GRADE 8 HEX CAP SCREWS YELLOW ZINC ASME B18.2.1 1996 IFI-7 AF 0.736-0.750 “ HH 0.302-0.323” AC 0.840-0.866” – 25/BOX