Fasteners, CNC Parts, Hex Bolts manufacturer / supplier in China, offering M6 M8 M10 M12 Carbon Steel Iron ASTM A325 Gr a B C Black Oxide Round Hexagon Flange Thin Slotted and Castle Nut DIN935 DIN1804, M20 X 1.0 Hot Sale Nut with Hex Hexagon Flange Slotted M22 M24 Carbon Steel Zinc Plated Galvanized Crown Castle Nut M14 X 1.5, M4 - M8 Stainless Steel /Steel Zinc Plated Flat / Round Head Hollow Cabinet Stiffener Nut Through Hole Hex Nuts and so on.