1/2"-13 x 3/4" Grade 8 Plain Finish Hex Cap Screw / THREAD DIRECTION: RIGHT-HAND FASTENER LENGTH: 0.75 INCHES NOMINAL HEAD DIAMETER: 0.75 INCHES NOMINAL NOMINAL THREAD DIAMETER: 13.0 INCHES PART NAME ASSIGNED BY CONTROLLING AGENCY: HEX CAP SCREW SPECIAL FEATURES: THREAD SIZE 13;GRADE 8;PLAIN;FNL;TELESCOPE RMU MATERIAL: STEEL CORROSION RESISTING FASTENER THREAD SERIES DESIGNATOR: UNC