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Carmex Carbide Threading Insert - UNJ - TiAlN Coated - 14I20UNJ
| Application | Threading |
| Thread Form | UNJ |
| Internal or External | Internal |
| Insert Size | 14 |
| Pitch | 20 |
Learn more about Klarna
The Carmex Carbide Threading Insert for UNJ, TiAlN coated, is a precision tool designed for machinists who need reliable UNJ and related thread forms with durable, long-lasting performance.
- TiAlN coating: TiAlN-coated carbide insert for enhanced wear resistance and higher-temperature capability in tough threading operations.
- Thread profiles: A versatile collection that covers all common thread profiles, simplifying tooling choices for widespread UNJ applications.
- Length options: Five lengths available (12 mm to 40 mm) to match depth and pitch requirements across projects.
- Pitch range: Depending on length, supports pitches from 0.5 mm / 32 TPI up to 6.0 mm / 4 TPI for flexible threading capability.
- Double-sided cutting edges: Each insert has two cutting edges (except for BSPT/NPT/NPTF/American Buttress/API RD profiles), maximizing edge life and reducing tool changes.
- Internal/External threading compatibility: For many thread profiles, the same insert can machine both internal and external threads, improving workflow efficiency (with exceptions for ISO / UN / NPSM / UNJ / Acme).
Designed to streamline threading workflows, this UNJ-focused carbide insert set delivers consistent thread quality across a variety of profiles while reducing tool changes and inventory. The TiAlN coating helps sustain performance in demanding materials, and the double-edged design extends usable life between regrinds or replacements. Whether you’re producing precise internal threads or external threads on steel, alloy, or similar workpieces, these inserts offer dependable, versatile performance for everyday machining needs.
| Application | Threading |
| Thread Form | UNJ |
| Internal or External | Internal |
| Insert Size | 14 |
| Pitch | 20 |
What time are Protool open?
We are open Monday to Friday between 8:30am and 5pm.
Do you offer Free Next Day delivery?
Yes! We offer Free Next Day delivery via Royal Mail Tracked 24 on all orders over £50 ex VAT*. We also offer Free DPD Local Next Day delivery on all orders over £100 ex VAT*.
We also offer the following:
- Royal Mail Tracked 24 — £5.90 (FREE on orders over £50 ex VAT*). Order before 4:30pm for next day delivery. No signature required.
- DPD Local Next Day — £8.00 (FREE on orders over £100 ex VAT*). Standard next day delivery to UK mainland addresses.
- Royal Mail Special Delivery — £12.50. Guaranteed delivery before 1pm the next working day.
- DPD Saturday Delivery — £25.00. Must be ordered on Friday before 4pm. Pre-12pm delivery.
For delivery to Scottish Highlands & Islands, Northern Ireland, Republic of Ireland, or overseas locations, additional charges apply. Please see our delivery page for full details, or call us on 01732 887 334.
*T's & C's and exclusions apply. Please see our delivery page for more information on all our services.
Full Range: Carmex Carbide Threading Inserts - UNJ - TiAlN Coated
View full collection →You are viewing 14I20UNJ. Click any other SKU to view its full details.
| Product SKU | Insert Size | Pitch | Price | Stock | Order |
|---|---|---|---|---|---|
| 14I24UNJ | 14 | 24 | £32.37 | 5 days | |
| 14E24UNJ | 14 | 24 | £32.37 | 5 days | |
| 14I20UNJ Viewing | 14 | 20 | £32.37 | 5 days | |
| 14E20UNJ | 14 | 20 | £32.37 | 5 days | |
| 14I18UNJ | 14 | 18 | £26.50 | In Stock | |
| 14E18UNJ | 14 | 18 | £32.37 | 5 days | |
| 14I16UNJ | 14 | 16 | £32.37 | 5 days | |
| 14E16UNJ | 14 | 16 | £32.37 | 5 days | |
| 14I14UNJ | 14 | 14 | £32.37 | 5 days | |
| 14E14UNJ | 14 | 14 | £32.37 | 5 days | |
| 14I12UNJ | 14 | 12 | £32.37 | 5 days | |
| 14E12UNJ | 14 | 12 | £32.37 | 5 days | |
| 21I24UNJ | 21 | 24 | £43.03 | 5 days | |
| 21E24UNJ | 21 | 24 | £43.03 | 5 days | |
| 21I20UNJ | 21 | 20 | £43.03 | 5 days | |
| 21E20UNJ | 21 | 20 | £43.03 | 5 days | |
| 21I18UNJ | 21 | 18 | £43.03 | 5 days | |
| 21E18UNJ | 21 | 18 | £43.03 | 5 days | |
| 21I16UNJ | 21 | 16 | £43.03 | 5 days | |
| 21E16UNJ | 21 | 16 | £43.03 | 5 days | |
| 21I14UNJ | 21 | 14 | £43.03 | 5 days | |
| 21E14UNJ | 21 | 14 | £43.03 | 5 days | |
| 21I12UNJ | 21 | 12 | £35.22 | In Stock | |
| 21E12UNJ | 21 | 12 | £43.03 | 5 days |
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