Fasteners, CNC Parts, Hex Bolts manufacturer / supplier in China, offering Black 304 Stainless Steel Hex Cap Nuts Hex Acorn Nut M3 M4 M5 M6 M8 M10 M12, DIN 1587 M10 Thread Dia Acorn Cap Black Zinc Plating Carbon Steel Decorative Dome Head Hex Nuts, DIN1587/DIN917/ JIS B1183 Carbon Steel Acorn Hexagon Cap Nuts - A2 A4 Acorn Hexagon Nuts and so on.