M3 x 7mm OD DIN 125 A2 Stainless Steel Type A Flat Washer / CROSS-SECTIONAL SHAPE STYLE: 1 RECTANGULAR HOLE DIAMETER: 3.20 MILLIMETERS NOMINAL PERIPHERAL SHAPE STYLE: 1 ROUND CENTER HOLE SHAPE STYLE: 1 ROUND THICKNESS: 0.45 MILLIMETERS MINIMUM AND 0.55 MILLIMETERS MAXIMUM OVERALL DIAMETER: 7.0 MILLIMETERS NOMINAL END ITEM IDENTIFICATION: 6625-01-560-1265 MATERIAL: STEEL COMP W109 OVERALL