5/16"-24 x 3/4" ASTM F593 18-8 Stainless Steel Hex Cap Screw / THREAD CLASS: 2A THREAD DIRECTION: RIGHT-HAND THREAD LENGTH: 0.72 INCHES MINIMUM AND 0.75 INCHES MAXIMUM FASTENER LENGTH: 0.915 INCHES MINIMUM AND 0.961 INCHES MAXIMUM HEAD STYLE: C2 UNDERCUT HEXAGON HEAD HEIGHT: 0.203 INCHES NOMINAL WIDTH BETWEEN FLATS: 0.4945 INCHES NOMINAL HEAD MAJOR DIAMETER: 0.577 INCHES MAXIMUM NOMINAL THREAD DIAMETER: 0.3125 INCHES THREAD QUANTITY PER INCH: 24 CHAMFER ANGLE: 150.0 DEGREES MINIMUM AND 30.0 DEGREES MAXIMUM MATERIAL: STEEL CORROSION RESISTING OVERALL THREAD SERIES DESIGNATOR: UNF