1.Name:Non-standard flat washer with small holes 2.Size: ... Material:Carbon steel Specification of our washer: 1.NameNon-standard flat washer with small holes 2.StandardDIN, IFI, ISO ... , JIS, AS,BS, EN, SAE,ASTM3.GradeSAE,USS,F4364.MaterialCarbon steel(Q235,#1035,# ... washer,etc2.StandardDIN, IFI, ISO, JIS, AS,BS, EN, SAE, ASTM3.GradeSAE,USS,F4364.MaterialCarbon steel(Q235,#1035,# ...