1/2"-13 x 1/2" Hex Drive Cup Point Zinc Finish Alloy Steel Socket Set Screw / THREAD CLASS: 3A THREAD DIRECTION: RIGHT-HAND THREAD LENGTH: 0.50 INCHES NOMINAL INTERNAL DRIVE STYLE: D5 HEXAGON END ITEM IDENTIFICATION: 2320-01-534-1887 NOMINAL THREAD DIAMETER: 0.50 INCHES WIDTH ACROSS FLATS: 0.250 INCHES NOMINAL THREAD QUANTITY PER INCH: 13 PART NAME ASSIGNED BY CONTROLLING AGENCY: SCR, SET, SOC, CPP MATERIAL: STEEL OVERALL THREAD SERIES DESIGNATOR: UNC