Helicoils, which are often incorporated into design specifications. By embedding them into the base material, they improve thread strength and enable repeated use!
"Helicoil" is the original "thread insert" that was born in the United States in the 1930s. The outer diameter of the tang thread insert is larger than the diameter of the threaded hole, and by being inserted into the hole, the diameter of the coil decreases. The coil expands with a spring-like action and is permanently fixed in the hole. The screw is then smoothly inserted, and the looseness is tightened. Additionally, to prevent loosening under vibration or shock, it provides an elastic internal locking screw (with a locking mechanism). In situations where lightweight and strength are required, such as in precision instruments and aerospace components, it reinforces the "weakness of the screw threads," which is a drawback of plastic 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.
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