Hex Bolt, Hex Nut, Flange Nut manufacturer / supplier in China, offering Brass Hex Nut Copper M6 M8 M12 M14 M16 M18 Nut DIN934, Panel Hex Nut M6 3.5mm Jack Thin 9/16-18 Panel Lock Nut, Stainless Steel 304 316 DIN933 DIN931 Hex Head Bolt with Washer and so on.