Product: Flat washers Material :A2.A4.SUS201.304.316 Standard: ... 6-M33 Color:silver,plain Certificate;ISO9001:2000Packing &Delivery:Packing items:usually packed in bulk,also packed in plastic bags ... /ASME B18.22.1Colorsilver,plainTechnology:cold forging,heat treatment,Packing:in bulk,in plastic bags and then to carton ... screws,bolts,nuts,washer and relative hardwarePHOTOES AS FOLLOWING: Flat washers