#6-32 x 3/4" Hex - Slotted Drive Indented Hex Washer Head Zinc Finish Steel Machine Screw / THREAD CLASS: 2A THREAD DIRECTION: RIGHT-HAND THREAD LENGTH: 0.750 INCHES NOMINAL FASTENER LENGTH: 0.750 INCHES NOMINAL HEAD STYLE: A7 HEXAGON EXTENDED WASHER HEAD HEIGHT: 0.095 INCHES MINIMUM AND 0.118 INCHES MAXIMUM WIDTH BETWEEN FLATS: 0.244 INCHES MINIMUM AND 0.250 INCHES MAXIMUM EXTENDED WASHER DIAMETER: 0.302 INCHES MINIMUM AND 0.328 INCHES MAXIMUM EXTENDED WASHER THICKNESS: 0.015 INCHES MINIMUM AND 0.025 INCHES MAXIMUM INTERNAL DRIVE STYLE: B10 SLOT END ITEM IDENTIFICATION: 01-615-9020 NOMINAL THREAD DIAMETER: 0.138 INCHES THREAD QUANTITY PER INCH: 32 SCREW MATERIAL: STEEL SPECIAL FEATURES: THREAD REQ. ASME B1.1, UNC & UNF THREAD SERIES DESIGNATOR: UNC