Bolts & Nuts, Screws, Rivets manufacturer / supplier in China, offering DIN 3871 Ll Type a Locking Boltfor Brazed & Non-Brazed Tube Thread Fittings, DIN 529-1 Hook Type Foundation Bolt Reliable Anchoring Solution for Concrete & Structural Applications, DIN 6303 a Knurled Nut Metric Knurled Thumb Nut Carbon Steel, Alloy Steel, Stainless Steel, Copper, Nickel Alloys, Aluminum Alloys and so on.