M12 x 24mm OD DIN 125 Grade HV300 Zinc Finish Steel Type A General Purpose Flat Washer / CROSS-SECTIONAL SHAPE STYLE: 1 RECTANGULAR HOLE DIAMETER: 13.0 MILLIMETERS NOMINAL PERIPHERAL SHAPE STYLE: 1 ROUND CENTER HOLE SHAPE STYLE: 1 ROUND THICKNESS: 2.50 MILLIMETERS NOMINAL OVERALL DIAMETER: 24.0 MILLIMETERS NOMINAL END ITEM IDENTIFICATION: 3930-01-599-9978 PART NAME ASSIGNED BY CONTROLLING AGENCY: M12 STEEL ZINC PLATED DIN 125A FLAT WASHER MATERIAL: STEEL OVERALL SURFACE TREATMENT: ZINC OVERALL