7/8-14X5 1/2 UNF GR8 HEX CAP SCR YZ SAE J429 GRADE 8 HEX CAP SCREWS YELLOW ZINC ASME B18.2.1 1996 IFI-7 AF 1.469-1.500” HH 0.591-0.627” AC 1.675-1.732”