Having been in the circle of fastener for over 10 years in producing steel fasteners including different types of Bolts,Washers,Nuts and other related products.The specification scale of our washers covers DIN,USS,SAE,NF,BS,etc and that of our bolts DIN558/601,DIN931/933,A10-5/2. We can produce nonstandard products according to the requests of customers as well.Nowadays,we can produce 7500 tons of screws and 8500 tons of washers every year and our turnover has exceeded USD12.5 million. And we own export license and can do business with your esteemed company directly.We are looking forward to your further inquiries.