M16-2.0 x 40mm DIN 933 Class 10.9 Zinc Finish Hex Cap Screw / 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: C1 HEXAGON HEAD HEIGHT: 9.82 MILLIMETERS MINIMUM AND 10.18 MILLIMETERS MAXIMUM WIDTH BETWEEN FLATS: 23.67 MILLIMETERS MINIMUM AND 24.00 MILLIMETERS MAXIMUM END ITEM IDENTIFICATION: MRAP-COUGAR NOMINAL THREAD DIAMETER: 16.0 MILLIMETERS MINIMUM TENSILE STRENGTH: 116000 POUNDS PER SQUARE INCH HARDNESS RATING: 21.0 ROCKWELL C MINIMUM OVERALL THREAD PITCH IN MILLIMETERS: 2.00 CHAMFER ANGLE: 15.0 DEGREES MINIMUM AND 30.0 DEGREES MAXIMUM MATERIAL: STEEL PROPERTY CLASS 10.9 OVERALL SURFACE TREATMENT: ZINC OVERALL THREAD SERIES DESIGNATOR: M