3/8-16 X 3/4 GR5 HEX CAP SCREW H.D.G SAE J429 GRADE 5 HEX CAP SCREWS HDG FULL THREAD ASME B18.2.1 1996 IFI-7 AF 0.551-0.562” HH 0.226-0.243” AC 0.628-0.650”