M6x18mmx1.5mm Stainless Steel Round Flat Washer for Bolt Screw 100Pcs Product Name: Flat Washer; Material: Stainless Steel Weight: 250g; Package Content: 100(+/-2%) x Flat Washer Main Color: Silver Tone; Inner Dia: 6mm/0.24" Outer Dia: 18mm/0.7" Thickness: 1.5mm/0.06"