3/8"-16 x 2-1/2" Grade 8 Yellow Zinc Finish Hex Cap Screw / THREAD CLASS: 2A THREAD DIRECTION: RIGHT-HAND THREAD LENGTH: 1.000 INCHES NOMINAL FASTENER LENGTH: 2.460 INCHES MINIMUM AND 2.500 INCHES MAXIMUM HEAD STYLE: C1 HEXAGON HEAD HEIGHT: 0.226 INCHES MINIMUM AND 0.243 INCHES MAXIMUM WIDTH BETWEEN FLATS: 0.551 INCHES MINIMUM AND 0.562 INCHES MAXIMUM END ITEM IDENTIFICATION: 4320-01-483-1054 PUMPING ASSEMBLY, FLAMMABLE LIQUID, BULK TRANSFER NOMINAL THREAD DIAMETER: 0.375 INCHES THREAD QUANTITY PER INCH: 16 PART NAME ASSIGNED BY CONTROLLING AGENCY: CAP SCRW COLOR: YELLOW OVERALL MATERIAL: STEEL OVERALL MATERIAL DOCUMENT AND CLASSIFICATION: SAE J429 ASSN STD SINGLE MATERIAL RESPONSE OVERALL SURFACE TREATMENT: ZINC OVERALL SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: ASTM F1941, FE/ZN 5C ASSN STD SINGLE TREATMENT RESPONSE OVERALL THREAD SERIES DESIGNATOR: UNC