... 1mm~12mm Length: 1mm~130mm Stainless Steel High Tensile slotted bolt and nut - ANSI (American National Standards Institute)- JIS (Japanese Industrial Standards ... China) Set screw Material: Carbon Steel, Stainless Steel, Brass, Aluminium and etc. Set screw Slot Type: Slotted Finished:White Zine, Black ... , Nickel, Brass, Trivalent Chromium White Zinc, Trivalent Chrominum Color Zinc and etc.