Size: M24, M20, M18, M16, M14, M12, M10, M8, M6, M5, etc. Standards: GB, ANSI, BS, DIN, ISO Application: corrosion resistance equipment accessories, electronic components, human implants, etc. According to customers' request, We supply high quality products, competitive prices, satisfactory quality and prompt delivery, we will be a good choice for you purchasing products.