#8-32 x 1/2" ASTM A574 Hex Drive Black Oxide Finish Alloy Steel Socket Cap Screw / THREAD CLASS: 3A THREAD DIRECTION: RIGHT-HAND THREAD LENGTH: 0.500 INCHES NOMINAL FASTENER LENGTH: 0.664 INCHES NOMINAL HEAD HEIGHT: 0.164 INCHES NOMINAL INTERNAL DRIVE STYLE: D5 HEXAGON END ITEM IDENTIFICATION: 4910-01-613-4708 NOMINAL THREAD DIAMETER: 8.0 MILLIMETERS THREAD QUANTITY PER INCH: 32 MINIMUM TENSILE STRENGTH: 180000 POUNDS PER SQUARE INCH HARDNESS RATING: 43.0 ROCKWELL C MAXIMUM OVERALL PART NAME ASSIGNED BY CONTROLLING AGENCY: CYLINDRICAL, SOCKET HEAD CAP SCREW COLOR: BLACK OVERALL MATERIAL: STEEL OVERALL SURFACE TREATMENT: BLACK CHEMICAL FINISH OVERALL THREAD SERIES DESIGNATOR: UNC