Flat, Socket Flat Head Cap Screw, #10-32, Steel, Alloy Steel, Zinc Plated, 5/8 in Length/ THREAD CLASS: 3A THREAD DIRECTION: RIGHT-HAND THREAD LENGTH: 0.373 INCHES NOMINAL FASTENER LENGTH: 0.500 INCHES NOMINAL HEAD STYLE: C50 FLAT COUNTERSUNK HEAD DIAMETER: 0.411 INCHES NOMINAL INTERNAL DRIVE STYLE: D5 HEXAGON END ITEM IDENTIFICATION: 2350-01-458-7318 NOMINAL THREAD DIAMETER: 0.190 INCHES WIDTH ACROSS FLATS: 0.125 INCHES NOMINAL THREAD QUANTITY PER INCH: 32 COUNTERSINK ANGLE: 82.0 DEGREES NOMINAL MATERIAL: STEEL OVERALL THREAD SERIES DESIGNATOR: UNF