Our main products include double spirals, square thread, triple thread, hob thread, all of which have been used extensively for collation and on some of the hardest woods. Our patent Square-Thread Screw has very low drive-in torque, a general 30~40% less than the Type17 wood screw. Square sharp angle threads cut into the fiber rather than forcing into it allow for better gripping and resistance to stripping. Milled point self-drilling screws feature lighter driving force and better consistency best suited for stringent applications of heavy gage and harder metal sheets. We also produce a variety of SEMS Screws, some with the nylon path, which are used in the auto, computer and toy……industries. We continue to discover more and more useful applications to meet our customers’ needs in an ever-expanding scope.