3/4-16X4 GR8 UNF HEX CAP SCR YZ SAE J429 GRADE 8 HEX CAP SCREWS YELLOW ZINC ASME B18.2.1 1996 IFI-7 AF 1.100-1.125” HH 0.455-0.483” AC 1.254-1.299” – 20/BOX