Flat Washer, Flat Washer Type Standard, Dimensional Standards DIN 125-1A, Material Steel, Finish Zinc-Plated, For Screw Size M2.5, Inside Diameter 2.84 mm, Outside Diameter 6 mm, Maximum Thickness 0.55 mm, System of Measurement Metric, Minimum Thickness 0.45 mm, Material Quality Standards 140 – 250 HV, Pack Size Small Pack, Thickness Tolerance +/-0.05mm, Package Quantity 100