We can provide screws according to: - ANSI (American National Standards Institute) - JIS (Japanese Industrial Standards) - DIN (German Industrial Standard) - BS (British Standard) - ISO (International Organization for Standardization) - GB (National Standards of the People's Republic of China) Material: Carbon Steel, Stainless Steel, Brass, Aluminium and etc. Slot Type: Slotted Finished:White Zine, Black Zine, Blue Zine, Yellow Zine, Chrome, Nickel, Brass, Trivalent Chromium White Zinc, Trivalent Chrominum Color Zinc and etc.