5/8-11X1 3/4 GR5 HEX F/T CAP SCR ZC SAE J429 GRADE 5 HEX CAP SCREWS ZINC FULL THREAD ASME B18.2.1 1996 IFI-7 AF 0.922-0.938” HH 0.378-0.403” AC 1.051-1.083”