M10-1.5 x 50mm DIN 931 Class 10.9 Yellow Zinc Finish Hex Cap Screw / THREAD DIRECTION: RIGHT-HAND THREAD LENGTH: 26.0 MILLIMETERS MINIMUM AND 33.5 MILLIMETERS MAXIMUM FASTENER LENGTH: 50.0 MILLIMETERS NOMINAL HEAD STYLE: C1 HEXAGON HEAD HEIGHT: 6.4 MILLIMETERS NOMINAL WIDTH BETWEEN FLATS: 17.0 MILLIMETERS NOMINAL END ITEM IDENTIFICATION: 2420-01-538-8287 NOMINAL THREAD DIAMETER: 10.0 MILLIMETERS MINIMUM TENSILE STRENGTH: 145000 POUNDS PER SQUARE INCH HARDNESS RATING: 32.0 ROCKWELL C MINIMUM OVERALL AND 39.0 ROCKWELL C MAXIMUM THREAD PITCH IN MILLIMETERS: 1.5 MATERIAL: STEEL OVERALL SURFACE TREATMENT: ZINC OVERALL THREAD SERIES DESIGNATOR: M