1/2"-13 x 1" Grade 8 Plain Finish Hex Cap Screw / THREAD DIRECTION: RIGHT-HAND FASTENER LENGTH: 1.00 INCHES NOMINAL HEAD STYLE: C1 HEXAGON HEAD DIAMETER: 0.75 INCHES NOMINAL NOMINAL THREAD DIAMETER: 13.00 INCHES SPECIAL FEATURES: PLAIN;GRADE 8;DIAMETER 0.50 MATERIAL: STEEL CORROSION RESISTING FASTENER THREAD SERIES DESIGNATOR: UNC