M4-0.7 x 25mm ISO 7380 Hex Drive Class 10.9 Black Oxide or Plain Finish Alloy Steel Button Socket Cap Screw / THREAD DIRECTION: RIGHT-HAND THREAD LENGTH: 23.6 MILLIMETERS NOMINAL FASTENER LENGTH: 25.0 MILLIMETERS NOMINAL HEAD STYLE: C30 BUTTON HEAD DIAMETER: 7.24 MILLIMETERS MINIMUM AND 7.60 MILLIMETERS MAXIMUM HEAD HEIGHT: 1.95 MILLIMETERS MINIMUM AND 2.20 MILLIMETERS MAXIMUM INTERNAL DRIVE STYLE: D5 HEXAGON END ITEM IDENTIFICATION: 01-622-0440 NOMINAL THREAD DIAMETER: 4.0 MILLIMETERS WIDTH ACROSS FLATS: 2.52 MILLIMETERS MINIMUM AND 2.56 MILLIMETERS MAXIMUM THREAD PITCH IN MILLIMETERS: 0.7 SPECIAL FEATURES: FINISH: D60, TYPE I PER FM100 MATERIAL: STEEL OVERALL MATERIAL DOCUMENT AND CLASSIFICATION: ISO 898-1 INTERNATIONAL STD/SPEC 1ST MATERIAL RESPONSE OVERALL OR ASTM F568M INTERNATIONAL STD/SPEC 2ND MATERIAL RESPONSE THREAD SERIES DESIGNATOR: M