Fasteners, CNC Parts, Hex Bolts manufacturer / supplier in China, offering DIN1587/DIN917/ JIS B1183 Carbon Steel Acorn Hexagon Cap Nuts - A2 A4 Acorn Hexagon Nuts, DIN1587 6# 8# 10# 1/4 5/16 3/8 7/16 1/2 5/8 3/4 Unc Unf Thread SUS304 Stainless Steel Hexagon Domed Cap Nut Hex Acorn Nuts, M3 M4 M5 M6 M8 M10 M12 Dome Nuts Acorn Cap Nut A2 Stainless Steel DIN 1587 and so on.