Copper Bolts,Brass 1.ISO,ANSI,CE,JIS,DIN,BS& non-standard fastener ... ,9.8.... Copper Bolts,Copper Bolt,Brass Bolts.1.What’s the specification of our Products ? MaterialsCarbon steel,Stainless steel,Alloy steel,Copper,Aluminum are ... ,1039,40ACR...Alloy steel are 35,40CrMo,SCM435,10B38...Stainless steel is SS201,202,302,304,316...copper is shiny brass , pure copper,such ...