Flat Washer, Flat Washer Type Standard, Dimensional Standards RoHS Compliant, Material Stainless Steel, Material Grade/Class 18-8, Finish Plain, For Screw Size M24, Inside Diameter 25 mm, Outside Diameter 40 mm, Maximum Thickness 4 mm, System of Measurement Metric, Minimum Thickness 4 mm, Inside Diameter Tolerance +/-0.010 in, Material Quality Standards ASTM A582, Outside Diameter Tolerance +/-0.010 in, Pack Size Small Pack, Resistance Properties Chemical-Resistant, Corrosion-Resistant