自窃听的螺丝

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, and etc. Heads: All kinds of screw heads R: Round Head P: Pan head B: Binding head T: Truss head F: Flat head C: Cheese head O: Oval head H: Hexagon head V: Mushroom headI: Invisible head Slot Type: Slotted, Cross Recess ( Phillips ), Philips/Slot, Hexagon Socket, Cross Recess ( Pozidriv ), Sixlobe and etc. Finished: White Zine, Black Zine, Blue Zine, Yellow Zine, Chrome, Nickel, Brass, Trivalent Chromium White Zinc, Trivalent Chrominum Color Zinc and etc.