Helicoils, which are often incorporated into design specifications. By embedding them into the base material, they enhance thread strength and enable repeated use!
"Helicoil" is the original "screw insert" that was born in the United States in the 1930s. We offer two types. ■ Tanged Thread Insert The tanged thread insert provides a permanent and wear-resistant screw thread, eliminating the need for cutting and removal of the tang. It also features a "screw lock" mechanism that prevents loosening under vibration or impact. ■ Tangless Thread Insert The tangless thread insert provides self-locking torque to male components through one or more insert coils. Using a tangless thread insert ensures that no loose tangs remain, making it a solution for critical applications where foreign object debris (FOD) is not present. There is no need for cutting or retrieving the tang, and it can be easily adjusted or removed after installation. In situations where lightweight and strength are required, such as in precision instruments and aerospace components, it reinforces the "weakness of the screw threads" that is a drawback of plastics and aluminum. *For more details, please refer to the PDF document or feel free to contact us.
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Toei Sangyo has been supplying products based on advanced technology and extensive experience in carbon jigs and other carbon products since its establishment, achieving significant results. Its business is related to a wide range of fields, including electronics, the automotive industry, and the steel and metal industries, and it has developed trade operations with countries around the world, including China, South Korea, and the United States, to support these activities. Graphite electrodes used in electric arc furnace steelmaking are actively imported and sold from China, starting with small diameter sizes for refining and expanding in recent years to large diameter sizes used in electric furnaces.