5/8"-11 x 5" Grade 5 Zinc Finish Hex Cap Screw / THREAD CLASS: 2A THREAD DIRECTION: RIGHT-HAND THREAD LENGTH: 1.500 INCHES NOMINAL FASTENER LENGTH: 4.900 INCHES MINIMUM AND 5.000 INCHES MAXIMUM HEAD STYLE: C1 HEXAGON HEAD HEIGHT: 0.378 INCHES MINIMUM AND 0.403 INCHES MAXIMUM WIDTH BETWEEN FLATS: 0.922 INCHES MINIMUM AND 0.938 INCHES MAXIMUM END ITEM IDENTIFICATION: 4320-01-617-7587 NOMINAL THREAD DIAMETER: 0.625 INCHES THREAD QUANTITY PER INCH: 11 PART NAME ASSIGNED BY CONTROLLING AGENCY: HEX CAP SCREW GRADE 5 MATERIAL: STEEL OVERALL SURFACE TREATMENT: ZINC OVERALL THREAD SERIES DESIGNATOR: UNC