Products all kinds of drywall screws, Chipboard screws, round head washer tapping screws, round head washer drill tail screws, window self-tapping screws, window self-drilling screws, masonry screws, plastic casing expansion screws, expansion screws, machine screws, furniture screws, DIN571 hexagon wood bolts, nuts, screws and some products which are made from stainless steel, cooper, high or low carbon steel with various kinds of international standard. and kinds of nuts, include hex nuts,flange nuts,weld nuts,hex bolts,carriage bolts.