Bolt, Nut, Screw manufacturer / supplier in China, offering Factory Direct Sales Customized Precision Copper Brass Knurled Heat-Set Threaded Insert Nut for Plastic M3 Flange, DIN603 6mm 8mm 12mm M2 M4 M6 Machinery Blue-White Zinc Plated Steel/Stainless Galvanised Allan Hexagonal Button Head Flat Head Carriage Bolts Screw, Stainless Steel Fastener T Hex Flange Allen U Hexagon Neck Round Head Bolt M6 Carriage Bolt and Nut with Washer and so on.