Spring washer 1)Material: Carbon,stainless steel 2)Size: Un- ... ZW,ZB,ZY,Nickel, ZP.else 4)Tolerance:0.01 Spring washer1)Standards:DIN127A, DIN127B ASME B 18 21.1 BS ... accroding to customer's requirement.More than ten years' experience in spring washers and other fasteners.Sincerely welcome to contact us for ... If you have any need from us ,please connect us in time so that we can prepare for you order. Our ...