... produced according to customer's design and requirementsMaterial: Carbon steel, Stainless steel , Brass, AluminumFinishing: Black, white and yellow zinc, black and white nickel , chromeDiameter: 0.8mm ... screws, Self tapping screws, Nylok screws, Plastic forming thread screws.(with all standard available: ISO, ANSI, DIN, JIS, GB... etc)Nuts ...