used screw quality









  • Screw Material1. Aluminumscrews are light, resistant to oxidation, thermal and electrical conducive, and easy to manufacture. 2. Brassscrews are strong, conductive, and corrosion resistant, with low magnetic permeability. 3. Copper alloyscrews have good load capacity, wear resistance, and are suitable …
  • Screw FinishesFinishes applied to the base metal of the screw enhance the durability and corrosion resistance of the material. 1. Black oxidefinishes do not enlarge the dimensions of the screw and is a processed black rust. It is mostly used for aesthetic purposes. 2. Chromecoating is a bright, reflective finis…
globalspec
  • Reconditioned Screw Guns & Used Screw Guns