M6-1.0 x 40mm ISO 4762 Hex Drive Class 12.9 Black Oxide Finish Alloy Steel Socket Cap Screw / THREAD DIRECTION: RIGHT-HAND THREAD LENGTH: 24.0 MILLIMETERS NOMINAL FASTENER LENGTH: 40.0 MILLIMETERS NOMINAL HEAD STYLE: C49 FLAT CHAMFER HEAD DIAMETER: 9.8 MILLIMETERS MINIMUM AND 10.2 MILLIMETERS MAXIMUM HEAD HEIGHT: 5.7 MILLIMETERS MINIMUM AND 6.0 MILLIMETERS MAXIMUM INTERNAL DRIVE STYLE: D5 HEXAGON END ITEM IDENTIFICATION: 4220-01-617-9406 NOMINAL THREAD DIAMETER: 6.0 MILLIMETERS WIDTH ACROSS FLATS: 5.0 MILLIMETERS MINIMUM AND 5.1 MILLIMETERS MAXIMUM THREAD PITCH IN MILLIMETERS: 1.0 EXTERNAL THREAD TOLERANCE CLASS: 6G PART NAME ASSIGNED BY CONTROLLING AGENCY: SOCKET HEAD CAP SCREW, METRIC COLOR: BLACK OVERALL MATERIAL: STEEL OVERALL SURFACE TREATMENT: OXIDE OVERALL THREAD SERIES DESIGNATOR: M