Hex Bolt, Hex Nut, Flange Nut manufacturer / supplier in China, offering 304 Stainless Steel Four-Claw Nut Flat Bottom with Through Holet-Type DIN1624, Carbon Steel Stainless Thread Bolt Wedge Anchor Throughbolt Expansion Concrete Fastener Zinc Building Material, DIN984 Carbon Steel Black Oxide Gear Retaining Ring Circlip and so on.