5/8"-11 x 3" Grade 8 Yellow Zinc Finish Hex Cap Screw / THREAD DIRECTION: RIGHT-HAND HEAD STYLE: C1 HEXAGON WIDTH BETWEEN FLATS: 0.938 INCHES NOMINAL END ITEM IDENTIFICATION: R19TM900GPMFL NOMINAL THREAD DIAMETER: 0.625 INCHES THREAD QUANTITY PER INCH: 11 PART NAME ASSIGNED BY CONTROLLING AGENCY: HEX CAP SCREW COLOR: YELLOW OVERALL MATERIAL: STEEL COMP 4140 OVERALL SURFACE TREATMENT: ZINC OVERALL THREAD SERIES DESIGNATOR: UNF