Non-Standard Metal Parts manufacturer / supplier in China, offering High Strength Wing Butterfly Nuts in Stainless Steel 304, M5.5 M6.3 #8 #10 #12 #14 Stainless Steel 410 Tek Hex Washer Head Self Drilling Screws Sheet Metal Screws, Premium Stainless Steel DIN934 Hexagon Nuts for Industrial Use and so on.