Extra Thick Oversized Washer, Flat Washer Type Standard, Dimensional Standards DIN 7349, Material Steel, Material Grade/Class Case Hardened, Finish Zinc-Plated, For Screw Size M5, Inside Diameter 5.3 mm, Outside Diameter 15 mm, Maximum Thickness 2 mm, System of Measurement Metric, Minimum Thickness 2 mm, Material Quality Standards 200 HV, Maximum Temperature 302 Degrees F, Minimum Temperature -58 Degrees F, Pack Size Small Pack, Package Quantity 100