Our precision-engineered tailless coil thread inserts feature a tang-free, bidirectional wire design engineered for permanent, wear-resistant threaded solutions. Eliminating tang removal requirements and foreign object debris (FOD) risks, these inserts deliver:

Constructed in corrosion-resistant stainless steel (AISI 304/316 options) with natural metallic finish. Critical for automotive manufacturing, heavy machinery, energy/power generation, and chemical processing systems. Custom configurations available for specialized industrial requirements.

As a high-performance thread fastening solution, the tangless wire insert is widely used in the following core industrial fields due to its shank-less design, bi-directional mounting characteristics and excellent mechanical properties:

1. Automobile manufacturing
In the production of new energy vehicles and traditional vehicles, it is used in key parts such as engine block, transmission housing, chassis suspension system, etc., to meet the demand for thread reinforcement of lightweight aluminum alloy parts, and significantly improve the anti-vibration and fatigue performance of connection points.

2. Aerospace
Applicable to high-temperature alloy components of aircraft engines and precision components of flight control systems. ISO 9001/AS9100 certified materials ensure structural integrity in extreme temperature and high pressure environments.

3. Energy equipment
Used in the manufacture of wind turbine spindles, nuclear power valve systems, and power transmission equipment, its corrosion-resistant properties (in accordance with EN 1663) can cope with salt spray, chemical media and other harsh working conditions.

4. High-end manufacturing
- Rail transportation: high-speed rail bogie, braking system key connection point
- Medical devices: CT machine rotating parts, surgical robots, precision transmission structure.
- Electronic communication: 5G base station heat dissipation module, server rack thread repair.

5. Heavy industry
In the hydraulic system of construction machinery and harbor lifting equipment, the wear resistance tested by ASTM F2281 can withstand impact loads of more than 200MPa and extend the equipment overhaul cycle.

The product has become the preferred solution for ISO 26262/IEC 61508 and other safety-critical system certified parts by optimizing the thread stress distribution (3-5 times fatigue life enhancement compared with traditional threads) and combining with FOD prevention and control design.

Technical Notes:

1. Coverage: Full or partial coverage permitted.
2. Measurement: Average of six measurements ≤0.0005"; individual readings must remain between 0.0002" and 0.0007".
3. Identification: Non-plated KernalCoil locking coil inserts (tangless) feature red dye per NAS 1130, NA0276, and NASM 21209. Ink markings are removable via solvent cleaning.
4. Coating Compliance: Dry film lubricant or cadmium plating mandated by NAS 1130, NASM 21209, MA3280/81, and MA3330/31. Any alternative coatings constitute non-compliant modifications.