5/8"-11 x 3" Cup Point Zinc Finish Case Hardened Steel Square Head Set Screw / THREAD CLASS: 2A THREAD DIRECTION: RIGHT-HAND THREAD LENGTH: 3.00 INCHES NOMINAL FASTENER LENGTH: 3.00 INCHES NOMINAL HEAD STYLE: C13 SQUARE HEAD HEIGHT: 0.452 INCHES MINIMUM AND 0.485 INCHES MAXIMUM WIDTH BETWEEN FLATS: 0.606 INCHES MINIMUM AND 0.625 INCHES MAXIMUM POINT LENGTH: 0.347 INCHES MINIMUM AND 0.371 INCHES MAXIMUM POINT STYLE: F1 FLAT INTERNAL DRIVE STYLE: D21 W/O INTERNAL DRIVE END ITEM IDENTIFICATION: MRAP-BUFFALO A1 NOMINAL THREAD DIAMETER: 0.625 INCHES THREAD QUANTITY PER INCH: 11 POINT CHAMFER ANGLE: 45.0 DEGREES MINIMUM AND 50.0 DEGREES MAXIMUM PART NAME ASSIGNED BY CONTROLLING AGENCY: 5/8-11X3 SQUARE HEAD SET SCREW CUP POINT ZINC SPECIAL FEATURES: MATERIAL IS LOW CARBON STEEL, CASE HARDENED STEEL. MATERIAL: STEEL OVERALL MATERIAL DOCUMENT AND CLASSIFICATION: ASME B18.6.2 ASSN STD SINGLE MATERIAL RESPONSE OVERALL SURFACE TREATMENT: ZINC OVERALL SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: ASTM F1941 ASSN STD SINGLE TREATMENT RESPONSE OVERALL THREAD SERIES DESIGNATOR: UNC