1/2"-13 x 5" Grade 8 Plain Finish Hex Cap Screw / FASTENER LENGTH: 5.0 INCHES NOMINAL HEAD DIAMETER: 0.750 INCHES NOMINAL END ITEM IDENTIFICATION: TURRET ASSEMBLY FRAME MR30 NOMINAL THREAD DIAMETER: 13.0 INCHES PART NAME ASSIGNED BY CONTROLLING AGENCY: HEX CAP SCREW SPECIAL FEATURES: SCREW DIAMETER 0.50;PLAIN FINISH;FNL THREAD SERIES DESIGNATOR: UNC NONDEFINITIVE SPEC/STD DATA: 8 GRADE