Thread Rolling Self Tapping Screws-triangular teeth tapping screws, also known as Type TT (Type Tai are still patent) is based on the principles shaping the development from the tap, thread rolling screws have a specially designed screw and tail end of the screw under pressure in the intermittent roll into their own with the female thread. At the same time the material around the hole can be more easily fill the Self Tapping Screws thread and the teeth at the end of the space, because of its friction than the thread forming tapping screws as small, so you can use the material in the thicker, better control of rotational torque required, and the combined strength even higher. thread rolling screws than standard definition of the project forming Self Tapping Screws or cutting the material, heat treatment , a higher intensity and more clearly defined, making the self-tapping screw thread rolling into a real "structure of" fastener.

Twin Lead Self Drilling Point Tapping Screws - assembly can be easily screwed into dry wall, the steel teeth on the self-drilling and tapping the hole with the female thread. The speaker of the bear head with a concave surface is not fashionable in the rotation As for the damage to wallpaper or plaster surface. Most of the Self Tapping Screws belong to commercial uses, such as Self Tapping Screws to screw combination (SEMS) offer, you can provide services more closely. And if the screw threads with the thickness of the designers of the special focus on the assembly line after locking.