... steel 2)Size: Un-finite 3)Finishing:ZW,ZB,ZY,Nickel, ZP.else 4)Tolerance:0.01 Square Washer 1) ... Aluminum, etc.4) Finish: Zinc Clear, Zinc Yellow, Black, Nickel-plating, Tin-plating, Chrome- plating, Dacromet,Mechanical Galvanizing, Hot-dip Galvanizing.etc.5) Shape ... or according to your request.8) For non-standard parts, samples or drawings are avaliable for us.9) Working Process Include: cold ...