1/4-28X1 GR8 UNF HEX CAP SCR YZ SAE J429 GRADE 8 HEX CAP SCREWS YELLOW ZINC ASME B18.2.1 1996 IFI-7 AF 0.428-0.438” HH 0.150-0.163” AC 0.488-0.505” – 100/BOX