5/16-18X3/4 GR5 HEX CAP SCR PLN SAE J429 GRADE 5 HEX CAP SCREWS PLAIN FULL THREAD ASME B18.2.1 1996 IFI-7 AF 0.489-0.500” HH 0.195-0.211” AC 0.557-0.577” – 100/BOX