M6-1.0 x 20mm Zinc Finish DIN 6921 Class 8.8 Hex Flange Bolt / THREAD DIRECTION: RIGHT-HAND THREAD LENGTH: 20.0 MILLIMETERS NOMINAL FASTENER LENGTH: 20.0 MILLIMETERS NOMINAL HEAD STYLE: C7 HEXAGON EXTENDED WASHER HEAD HEIGHT: 6.6 MILLIMETERS MAXIMUM WIDTH BETWEEN FLATS: 9.78 MILLIMETERS MINIMUM AND 10.00 MILLIMETERS MAXIMUM EXTENDED WASHER DIAMETER: 14.2 MILLIMETERS MAXIMUM EXTENDED WASHER THICKNESS: 4.1 MILLIMETERS NOMINAL END ITEM IDENTIFICATION: 6115-01-612-8573 NOMINAL THREAD DIAMETER: 6.0 MILLIMETERS THREAD PITCH IN MILLIMETERS: 1.0 MATERIAL: STEEL OVERALL SURFACE TREATMENT: ZINC OVERALL THREAD SERIES DESIGNATOR: M