5/8"-11 x 2-1/4" Grade 8 Plain Finish Hex Cap Screw / THREAD DIRECTION: RIGHT-HAND FASTENER LENGTH: 2.025 INCHES NOMINAL HEAD STYLE: C1 HEXAGON HEAD DIAMETER: 0.937 INCHES NOMINAL NOMINAL THREAD DIAMETER: 0.625 INCHES THREAD QUANTITY PER INCH: 11 SPECIAL FEATURES: TURRET ROTATOR MR30 THREAD SERIES DESIGNATOR: UNC NONDEFINITIVE SPEC/STD DATA: 8 GRADE