We are a carbon steel screw manufacturer founded in 1994 with ISO 9001 certificate in Taiwan, assure you of prompt reply, high quality products and competitive pricing. The main product is Tapping screw, Self Drilling screw, Trilobular Screw, Machines screw, window screw, Euro screw, special design per drawing. Especially specialize in special tapping screw and Trilobular screw. We also can manufacture and export thread die.