... 1.ANSI,CE,DIN,BS& non-standard fastener supply 2.ROHS is capable 3.Grade:4.8,6.8,8.8,9 ... .8,10.9........ Non Standard Fastener,Special Fastener,Iron Fastener.1.What’s the specification of our Products ? MaterialCarbon steel,Stainless ... expensive than other company,but is reasonable for products,it will spend high control force from material till products reach in customer ...