3/8"-16 x 1/2" Hex Drive Cup Point Black Oxide Finish Alloy Steel Socket Set Screw / THREAD DIRECTION: RIGHT-HAND FASTENER LENGTH: 0.490 INCHES MINIMUM AND 0.510 INCHES MAXIMUM HEAD STYLE: C33 PAN NO. 2 POINT STYLE: F20 CUP INTERNAL DRIVE STYLE: D5 HEXAGON END ITEM IDENTIFICATION: 2355-01-567-4930 TRUCK, BOMB SERVICE WIDTH ACROSS FLATS: 0.188 INCHES MINIMUM AND 0.190 INCHES MAXIMUM PART NAME ASSIGNED BY CONTROLLING AGENCY: CUP POINT SOCKET SET SCREW COLOR: BLACK OVERALL MATERIAL: STEEL OVERALL SURFACE TREATMENT: OXIDE OVERALL