High-Performance Thread Inserts for Demanding Industries
AS9100D-Compliant QMS · First Article Inspection · Full Lot Traceability
What Is a Thread Insert?
The four insert families, five material families and coating options — at a glance.
A thread insert is a helically coiled or solid threaded liner installed into a pre-tapped hole to restore a damaged thread or reinforce a soft base material such as aluminum, magnesium or cast iron.
Helical coilTangFree state- Wire Thread Inserts
- Tangless Inserts
- Self-Tapping Inserts
- Key-Locking Inserts
M2–M40 · 0.5D–3.5D · 304H & 316 stainless · Nitronic 60 · Inconel X-750 · phosphor bronze · titanium · dry-film lube, silver & protective coatings
Send your drawing and we will confirm type, material and price.
Thread Insert Product Lines
Four insert families for thread strengthening, locking and repair in aluminum, titanium and soft-alloy assemblies.
Wire Thread Inserts
Helically coiled inserts that distribute bolt load evenly and protect tapped threads in soft base materials. Sizes M2–M40, lengths 0.5D–3.5D, in 304H, 316, Nitronic 60, Inconel X-750 and phosphor bronze.
Explore wire thread inserts →
Tangless Inserts
No-tang design eliminates the tang break-off step and broken-tang FOD risk, installs in either direction and removes cleanly for rework. The default choice for FOD-controlled aerospace assembly.
Explore tangless inserts →
Self-Tapping Inserts
Internally and externally threaded bushings that cut their own thread in pre-drilled holes — well suited to titanium and hard-to-tap alloys, thin walls and post-casting installation.
Explore self-tapping inserts →
Key-Locking Inserts
Solid-bodied inserts with driving keys that lock into the parent thread — for heavy-duty, high-vibration and high-temperature joints where coil inserts reach their limits.
Explore key-locking inserts →Thread Insert Solutions by Industry
Application-proven fastening across four high-reliability sectors.
Aerospace
Airframe structures, landing gear attachments and FOD-sensitive assemblies, with full material traceability.
Aerospace solutions →Gas Turbines
Hot-section housings fastened at 600°C+ with creep-resistant Inconel X-750 and silver-plated inserts.
Gas turbine solutions →Semiconductor Equipment
Non-magnetic, low-particle inserts for vacuum chambers and RF grounding points in wafer processing.
Semiconductor solutions →Data Centers
Vibration-proof, back-out-resistant inserts for liquid-cooled server chassis and power hardware.
Data center solutions →Field-Proven Case Studies
Five engineering cases from aerospace, gas turbine, semiconductor and data center programs.
Tangless Inserts in Aluminum Wing & Door Joints
Thread loading up 3–4×, assembly 35% faster, 10,000+ vibration cycles without loosening — zero broken-tang FOD risk.
Inconel X-750 Inserts at 600°C+
Silver-plated wire thread inserts hold bolt preload through thermal cycling and stop thread galling; full heat-number traceability.
Nitronic 60 & Phosphor Bronze in Vacuum Chambers
Non-magnetic, low particle generation and no thread cold-welding — meeting ultra-clean manufacturing requirements.
Key-Locking Inserts in Server Chassis
Zero back-out under vibration; 10× longer thread life across repeated maintenance cycles.
Self-Tapping Inserts in Titanium Brackets
Corrosion-protected coatings withstand salt-fog environments and impact loads without loosening.
How to Order Thread Inserts
From first inquiry to production supply in three steps — samples available before volume orders.
Send Your Requirements
Share thread specification, base material, quantity and target price — or simply attach a drawing to the RFQ form. Engineering replies within one business day.
Review the Engineering Proposal
We confirm insert type, size and length class, material grade, coating and tooling, then quote with lead time. Standard sizes ship from semi-finished stock for short lead times.
Approve Samples & Scale Up
First article samples with dimensional inspection report precede volume production. Full lot traceability and consistent quality follow on every repeat order.
Why Source Thread Inserts from Ankolam
Process discipline over certificate walls — quality you can trace, part by part.
- First Article Inspection Every new part number verified dimensionally before production release.
- 100% Inspection Every insert checked before release — not sampling-based.
- Full Lot Traceability Material heat numbers and batch records retained for every shipment.
- AS9100D-Compliant Controls Process controls aligned with AS9100D-compliant quality management resources.
Inside the Ankolam Factory
Production, assembly, warehousing and metrology — under one roof in Wuxi.
Frequently Asked Questions
Quick answers for engineers and sourcing teams.
Which thread insert types does Ankolam manufacture?
Ankolam manufactures all four major families: wire thread inserts (free-running and screw-locking, tanged and tangless), self-tapping inserts, key-locking inserts, plus installation tooling and thread repair kits. Sizes span M2–M40 metric and 2-56 to 7/8-9 inch series.
What materials and coatings are available?
Material families include 304H and 316 stainless steel, Nitronic 60, Inconel X-750, phosphor bronze and titanium. Coatings include dry-film lubricant, silver plate (to ~650°C), cadmium, tin and zinc-nickel for galvanic-corrosion control in aluminum assemblies.
What is the MOQ and how fast can I get a quote?
Standard catalog sizes support low MOQs with short lead times from semi-finished stock; custom dimensions and materials are quoted per project. Submit the RFQ form and our engineering team responds within one business day.
Have a Thread Insert Application to Solve?
Send drawings, specs or sample part numbers — our engineers will recommend insert type, material and coating, and reply within one business day.