Flat washer provides a bearing surface for fastener load distribution or is used as a spacer betwe...Flat washer provides a bearing surface for fastener load distribution or is used as a spacer between components. Zinc plated offers corrosion resistance and has a reflective appearance. Product Name: Flat Washer; Material: Iron, Zinc Plated Weight: 17g; Package Content: 100(+/-2%) x Flat Washers Thickness: 0.5mm / 0.02"; Inner Diameter: 2.5mm / 0.1" Standard: GB97; Outer Diameter: 5mm / 0.2" Color: Silver Tone, Weight: 0.0440924524 Pounds, Manufacturer: Sourcingmap