M6 x 12mm OD DIN 125 A4 Stainless Steel Type A Flat Washer / CROSS-SECTIONAL SHAPE STYLE: 1 RECTANGULAR HOLE DIAMETER: 6.4 MILLIMETERS NOMINAL PERIPHERAL SHAPE STYLE: 1 ROUND CENTER HOLE SHAPE STYLE: 1 ROUND THICKNESS: 1.4 MILLIMETERS MINIMUM AND 1.8 MILLIMETERS MAXIMUM OVERALL DIAMETER: 12.0 MILLIMETERS NOMINAL PART NAME ASSIGNED BY CONTROLLING AGENCY: M6 DIN 125 STAINLESS STEEL A4 FLAT WASHER MATERIAL: STEEL CORROSION RESISTING OVERALL