uxcell 100Pcs M5 x 1mm Stainless Steel Metric Flat Washer for Bolt Screw Product Name: Flat Washer; Material: Stainless Steel Weight: 53g; Package Content: 100(+/-2%) x Flat Washer Main Color: Silver Tone; Inner Dia: 5mm/0.2" Outer Dia: 10mm/0.4" Thickness: 1mm/0.04"