Square Washer 1)Material: Carbon,stainless steel 2)Size: ... ZW,ZB,ZY,Nickel, ZP.else 4)Tolerance:0.01 Square Washer 1) Standard: DIN, BS, IFI, JIS, ISO ... Hot-dip Galvanizing.etc.5) Shape: round , square , curved , taper, cup, bowl or according to your request.6) Surface Condition: ... remove all burs and sharp edges.7) Packing: Carton, ...