M8-1.25 x 40mm ISO 7380 A2-70 Stainless Steel Button Socket Cap Screw - Full Thread / THREAD CLASS: 6G THREAD DIRECTION: RIGHT-HAND THREAD LENGTH: 39.50 MILLIMETERS MINIMUM AND 40.50 MILLIMETERS MAXIMUM FASTENER LENGTH: 39.50 MILLIMETERS MINIMUM AND 40.50 MILLIMETERS MAXIMUM HEAD STYLE: C32 PAN HEAD DIAMETER: 13.57 MILLIMETERS MINIMUM AND 14.00 MILLIMETERS MAXIMUM HEAD HEIGHT: 4.15 MILLIMETERS MINIMUM AND 4.40 MILLIMETERS MAXIMUM INTERNAL DRIVE STYLE: D5 HEXAGON NOMINAL THREAD DIAMETER: 8.0 MILLIMETERS WIDTH ACROSS FLATS: 5.020 MILLIMETERS MINIMUM AND 5.084 MILLIMETERS MAXIMUM THREAD PITCH IN MILLIMETERS: 1.25 SPECIAL FEATURES: A2 STAINLESS STEEL MATERIAL: STEEL CORROSION RESISTING OVERALL THREAD SERIES DESIGNATOR: M