M12-1.75 x 25mm DIN 7991 Hex Drive Class 10.9 Plain Finish Alloy Steel Flat Socket Cap Screw / THREAD DIRECTION: RIGHT-HAND THREAD LENGTH: 18.5 MILLIMETERS NOMINAL FASTENER LENGTH: 25.0 MILLIMETERS NOMINAL HEAD STYLE: C50 FLAT COUNTERSUNK HEAD DIAMETER: 23.48 MILLIMETERS MINIMUM AND 24.00 MILLIMETERS MAXIMUM INTERNAL DRIVE STYLE: D5 HEXAGON END ITEM IDENTIFICATION: 016417505 NOMINAL THREAD DIAMETER: 12.0 MILLIMETERS WIDTH ACROSS FLATS: 8.03 MILLIMETERS MINIMUM AND 8.18 MILLIMETERS MAXIMUM THREAD PITCH IN MILLIMETERS: 1.75 COUNTERSINK ANGLE: 90.0 DEGREES NOMINAL PART NAME ASSIGNED BY CONTROLLING AGENCY: SCDREW,FLAT,SOCKET HEAD MATERIAL: STEEL PROPERTY CLASS 10.9 OVERALL MATERIAL DOCUMENT AND CLASSIFICATION: ASTM F568M ASSN STD SINGLE MATERIAL RESPONSE OVERALL THREAD SERIES DESIGNATOR: M