M8-1.25 x 60mm ISO 4762 Hex Drive Class 12.9 Black Oxide Finish Alloy Steel Socket Cap Screw / THREAD DIRECTION: RIGHT-HAND THREAD LENGTH: 28.0 MILLIMETERS NOMINAL FASTENER LENGTH: 60.0 MILLIMETERS NOMINAL HEAD DIAMETER: 12.73 MILLIMETERS MINIMUM AND 13.27 MILLIMETERS MAXIMUM HEAD HEIGHT: 7.64 MILLIMETERS MINIMUM AND 8.00 MILLIMETERS MAXIMUM INTERNAL DRIVE STYLE: D5 HEXAGON END ITEM IDENTIFICATION: 016536516 NOMINAL THREAD DIAMETER: 8.0 MILLIMETERS WIDTH ACROSS FLATS: 6.02 MILLIMETERS MINIMUM AND 6.14 MILLIMETERS MAXIMUM THREAD PITCH IN MILLIMETERS: 1.25 EXTERNAL THREAD TOLERANCE CLASS: 6G PART NAME ASSIGNED BY CONTROLLING AGENCY: SCREW,CAP,SOCKET THREAD SERIES DESIGNATOR: M