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◎ Thread Range: Metric M2x0.4 to M36x4.0; Imperial #0-80 to 1 ½-12.
◎ Lengths: 1.0 d to 3.0 d (where d = nominal thread diameter).
◎ Pitch Diameters: Free diameter is typically 0.010–0.015 in larger than the tapped hole to ensure radial preload.
◎ Insert Types:
– Free-running (standard) for general-purpose use.
– Screw-locking (tanged or tangless) with internal locking coil that grips the bolt to prevent loosening under vibration.
– Heavy-duty coils for oversized holes and maximum load transfer.
– Tangless designs for automated assembly and elimination of tang removal
Wire Thread Insert
0102030405
Free running and self-locking wire threaded inserts
Standard
18-8 (304) stainless steel – excellent corrosion resistance and general-purpose durability.
High-Corrosion
316L stainless steel – superior pitting and chloride resistance for marine and chemical environments.
High-Temperature
Inconel X-750 or A-286 – service up to 550 °C continuous, 815 °C intermittent.
Phosphor Bronze C51000
non-magnetic, non-sparking, ideal for electrical and explosive-atmosphere applications.
Cadmium-plated carbon steel
cost-effective for tooling and automotive repair kits.
All wires are work-hardened to 1400
1600 MPa tensile strength, then precision-coiled and stress-relieved to provide a uniform, resilient thread.
◎ High Strength-to-Weight Ratio: Cold-worked parent material and large contact area increase pull-out strength 1.5–2× versus original tapped threads.
◎ Fatigue & Vibration Resistance: Spring action distributes dynamic loads, extending fatigue life up to 5× in aluminum alloys.
◎ Wear & Corrosion Resistance: Hard, smooth surface (Ra < 0.8 µm) reduces galling and corrosion; meets ASTM B117 1 000 h salt-spray for stainless variants.
◎ Thread Accuracy & Reusability: Precision-formed coils compensate for pitch errors, allow 50+ removal/insert cycles without loss of torque integrity.
◎ Temperature Range: From cryogenic –240 °C to 815 °C depending on alloy choice.
◎ Weight & Space Savings: Enables use of thinner wall sections or lighter alloys without sacrificing joint integrity.
01
Aerospace
turbine housings, wing spar joints, satellite avionics, landing-gear brackets.
01
Defense
missile guidance frames, armored vehicle hulls, artillery mounts.
01
Automotive
aluminum engine blocks, cylinder heads, transmission housings, EV battery trays.
01
Medical Devices
titanium orthopedic implants, MRI-compatible housings.
01
Oil & Gas
drilling rigs, subsea BOP stacks, pipeline valve bodies.
01
Electronics
magnesium laptop shells, heat-sink plates, PCB standoffs.
01
Industrial Equipment
injection-mold dies, robotic arms, food-processing machinery.
01
Renewable Energy
wind-turbine nacelle covers, solar-panel rails.
Drill the hole to the specified STI diameter (oversized compared to standard tap).
Tap with the corresponding STI tap to create the required oversized internal thread.
Using the installation tool, wind the insert into the tapped hole until the top coil is flush (or ¼ turn below for countersunk styles).
For tang-type inserts, break off the drive tang using the tang-break tool; tangless inserts use a reverse-winding mandrel.
Inspect visually; the insert should be fully seated with no gaps or protrusions.
Allow any induced stresses to relax (especially in plastics), then torque-test the mating bolt to specification.
◎ Manual or pneumatic insertion tools for tang-type coils.
◎ Tangless power drivers for automated high-volume assembly lines.
◎ Thread gauges and STI taps for quality control.
Make an free consultant
Welcome to discuss more details and usage of the product with us at any time. We look forward to your contact!