3/4-16X1 1/2 GR5 HEX CAP SCR ZC SAE J429 GRADE 5 HEX CAP SCREWS ZINC FULL THREAD ASME B18.2.1 1996 IFI-7 AF 1.100-1.125” HH 0.455-0.483” AC 1.254-1.299”