Precision Carbide Threading Inserts
Carbide threading inserts for thread turning, thread milling, thread whirling, and custom thread profile machining. Choose standard full-profile inserts or request custom carbide inserts for worm shafts, medical bone screws, lead screws, API connections, and other special threaded parts.
Choose threading inserts by machining process
Use this page as the main threading insert hub. Buyers can first choose the process, then move to the correct product or application page.
Thread Turning Inserts
For internal and external threads on CNC lathes, including ISO, UN, TR, ACME, Buttress, API, NPT and BSPT thread forms.
Browse turning insertsThread Whirling Inserts
For high-efficiency machining of worm shafts, medical bone screws, lead screws, rotors and other special thread profiles.
View whirling insertsCustom Threading Inserts
Custom carbide inserts for special thread profiles, unusual pitches, multi-start threads, non-standard holders and customer drawings.
Request custom designThreading Tool Holders
Threading holders and matching systems for stable insert clamping, repeatability and reliable thread quality.
View holdersThread whirling insert applications
Thread whirling should be presented as an important sub-category under threading inserts, not hidden inside turning inserts.
Worm shaft whirling inserts
Profile inserts for worm shafts, worm screws, multi-start worms, left-hand/right-hand threads and precision transmission parts.
Medical bone screw whirling inserts
Thread whirling inserts for bone screws, implants and titanium medical components where thread profile, burr control and surface quality matter.
Lead screw & special thread whirling inserts
Custom whirling inserts for lead screws, feed screws, rotors, micro screws and other special long-thread components.
Custom threading inserts from your drawing
For non-standard profiles, the most important SEO and conversion message is clear: ONMY can design inserts from the thread geometry, workpiece material, machine and current tooling problems.
Thread data
Thread type, pitch or lead, start number, left/right hand, major/minor diameter and profile drawing.
Application data
Workpiece material, hardness, batch size, required tolerance, surface finish and burr control requirements.
Machine & holder data
CNC lathe, Swiss-type machine, thread whirling head, holder pocket or existing insert sample.
Tool design
Carbide grade, edge preparation, coating, profile compensation and inspection requirements.
Standard carbide threading insert series
Existing product links from the current ONMY threading insert collection page, reorganized for easier scanning and stronger internal linking.
NPTF Dryseal American Pipe Thread Inserts
Carbide threading inserts for precise internal and external thread machining.
View productMetric Trapezoidal (TR) DIN 103 Threading Inserts
Carbide threading inserts for precise internal and external thread machining.
View productMetric Trapezoidal (TR) Vertical Threading Inserts
Carbide threading inserts for precise internal and external thread machining.
View productMetric Trapezoidal (TR DIN 103) U-Type Heavy-Duty Inserts
Carbide threading inserts for precise internal and external thread machining.
View productACME American Trapezoidal Laydown Threading Inserts
Carbide threading inserts for precise internal and external thread machining.
View productACME U-Type Full Profile Laydown Threading Inserts
Carbide threading inserts for precise internal and external thread machining.
View productStub ACME (STACME) Threading Inserts
Carbide threading inserts for precise internal and external thread machining.
View productMetric Sawtooth (SAGE) DIN 513 Threading Inserts
Carbide threading inserts for precise internal and external thread machining.
View productAmerican Buttress (ABUT) 7 degree/45 degree Threading Inserts
Carbide threading inserts for precise internal and external thread machining.
View productAmerican Buttress (ABUT) U-Type Threading Inserts
Carbide threading inserts for precise internal and external thread machining.
View productBritish Buttress (BBUT) 7 degree/45 degree Threading Inserts
Carbide threading inserts for precise internal and external thread machining.
View productBritish Buttress (BBUT) U-Type Threading Inserts
Carbide threading inserts for precise internal and external thread machining.
View productHughes H-90 Special Laydown Threading Inserts
Carbide threading inserts for precise internal and external thread machining.
View productPG DIN 40430 Steel Conduit Threading Inserts
Carbide threading inserts for precise internal and external thread machining.
View productMetric Round (RD) DIN 20400 Threading Inserts
Carbide threading inserts for precise internal and external thread machining.
View productRound (RD) DIN 405 Laydown Threading Inserts
Carbide threading inserts for precise internal and external thread machining.
View productAPI Extreme Line (EL) Casing Thread Inserts
Carbide threading inserts for precise internal and external thread machining.
View productVAM Premium Connection Threading Inserts
Carbide threading inserts for precise internal and external thread machining.
View productAPI Buttress (BUT) Casing Thread Inserts
Carbide threading inserts for precise internal and external thread machining.
View productAPI Round (RD) Oilfield Threading Inserts
Carbide threading inserts for precise internal and external thread machining.
View product55 degree Partial Profile Laydown Carbide Threading Insert
Carbide threading inserts for precise internal and external thread machining.
View productU-Type Partial Profile Threading Inserts - 55 degree & 60 degree
Carbide threading inserts for precise internal and external thread machining.
View productISO Metric Full Profile Laydown Threading Inserts
Carbide threading inserts for precise internal and external thread machining.
View productVertical V-Style Partial Profile On-Edge Threading Inserts
Carbide threading inserts for precise internal and external thread machining.
View productISO Metric U-Type Full Profile Threading Inserts
Carbide threading inserts for precise internal and external thread machining.
View productISO Metric Vertical On-Edge Threading Inserts
Carbide threading inserts for precise internal and external thread machining.
View productUN Unified U-Type Full Profile Threading Inserts
Carbide threading inserts for precise internal and external thread machining.
View productUN Unified Full Profile Laydown Threading Inserts
Carbide threading inserts for precise internal and external thread machining.
View productUNJ Unified Aerospace Full Profile Threading Inserts
Carbide threading inserts for precise internal and external thread machining.
View productMJ Metric Aerospace Full Profile Threading Inserts
Carbide threading inserts for precise internal and external thread machining.
View productWhitworth (BSW / BSF / BSP) Full Profile Threading Inserts
Carbide threading inserts for precise internal and external thread machining.
View productBSPT British Standard Pipe Taper Threading Inserts
Carbide threading inserts for precise internal and external thread machining.
View productNPT American National Pipe Taper Threading Inserts
Carbide threading inserts for precise internal and external thread machining.
View productWhich threading insert should you choose?
This comparison helps users decide faster and gives Google clearer semantic coverage for threading insert selection.
| Requirement | Recommended insert type | Typical applications |
|---|---|---|
| General 60 degree metric or unified threads | ISO Metric / UN full profile or partial profile inserts | Bolts, shafts, general machine components |
| Power transmission and linear motion | TR, ACME, Stub ACME and round thread inserts | Lead screws, jack screws, actuators, valve stems |
| High axial load in one direction | Buttress, SAGE, ABUT, BBUT and heavy-duty U-type inserts | Presses, jacks, heavy machinery and oilfield parts |
| Oilfield connection threads | API, VAM, Hughes H-90 and premium connection inserts | Casing, tubing, drill pipe and tool joints |
| Worm shafts, bone screws or long special threads | Thread whirling inserts or custom profile inserts | Worm shafts, medical implants, feed screws and rotors |
FAQ for carbide threading inserts
Add these questions to the collection page to capture long-tail search traffic and guide buyers toward inquiry.
What is the difference between full-profile and partial-profile threading inserts?
Full-profile inserts are designed for a specific pitch and can finish the crest and thread form in one operation. Partial-profile inserts cover a pitch range but usually require additional control of the thread crest diameter.
When should I choose thread whirling inserts instead of thread turning inserts?
Thread whirling is often preferred for long, slender or deep-profile threads such as worm shafts, medical bone screws, implants and lead screws, especially when productivity and profile accuracy are critical.
Can ONMY make custom threading inserts from a drawing or sample?
Yes. Provide the thread profile drawing, pitch or lead, start number, hand direction, workpiece material, machine model and current tooling problem. ONMY can review the geometry and recommend a custom carbide insert solution.
Which coating should I use for threading inserts?
Coating depends on workpiece material, cutting speed, coolant condition and tool life target. PVD coatings are commonly used for sharp edges and precision profiles, while CVD coatings may be selected for higher wear resistance in heavier cutting.
Need a special thread profile or whirling insert?
Send your drawing, sample photo, machine model and machining problem. ONMY can help review the insert geometry, carbide grade, coating and cutting edge preparation.
