Washer /flat washer/spring washer 1)Material:Carbon,stainless steel 2)Size: Un-finite 3)Finishing:ZW,ZB,ZY,Nickel, ... ZP.els Washers1. Products Detailes: 1NameScrew,bolts.nuts2MaterialIron,carbon steel,brass,aluminum,stainless steel3Diameter rangeM3-M16 mm ,the length within 150mm4Head diametre ... can ,pls directly call me at 0086-13798740287 High Quality Stainless Steel Round Washers