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Carmex Carbide Threading Insert - UNJ - TiAlN Coated - 14I12UNJ
| Application | Threading |
| Thread Form | UNJ |
| Internal or External | Internal |
| Insert Size | 14 |
| Pitch | 12 |
Learn more about Klarna
The Carmex Carbide Threading Insert for UNJ threads is a TiAlN-coated carbide solution designed to deliver precise, reliable threading across a wide range of common profiles. Built for machinists and production environments, this insert family offers versatility and durability in a single, interchangeable tool.
- Thread profiles: A versatile collection that covers all common thread profiles with a single insert family.
- Lengths: Five length options ranging from 12 mm to 40 mm to match different pitch requirements.
- Pitch range: Depending on the length, suitable for pitches from 0.5 mm (32 TPI) to 6.0 mm (4 TPI).
- Cutting edges: Double-sided design with two cutting edges for most profiles, extending tool life (exceptions apply for BSPT/NPT/NPTF/American Buttress/API RD).
- Internal/External capability: For many thread profiles, the same insert can machine both internal and external applications (except ISO/UN/NPSM/UNJ/Acme).
- Coating: TiAlN-coated carbide for improved wear resistance and heat tolerance, helping maintain precision under demanding cutting conditions.
- Substrate: Carbide insert designed for enduring performance and long tool life in threading operations.
Designed to reduce tool changes and inventory while maintaining consistent thread quality, this UNJ-compatible insert delivers dependable results across varied materials and pitches. The TiAlN coating helps manage heat during deeper or faster passes, while the dual-cutting-edge design provides the option to index for a fresh edge without swapping inserts. Ideal for job shops and high--output setups that require flexible threading capability without compromising accuracy.
| Application | Threading |
| Thread Form | UNJ |
| Internal or External | Internal |
| Insert Size | 14 |
| Pitch | 12 |
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 14I12UNJ. Click any other SKU to view its full details.
| Product SKU | Insert Size | Pitch | Price | Stock | Order |
|---|---|---|---|---|---|
| 14I24UNJ | 14 | 24 | £22.91 | 5 days | |
| 14E24UNJ | 14 | 24 | £22.91 | 5 days | |
| 14I20UNJ | 14 | 20 | £22.91 | 5 days | |
| 14E20UNJ | 14 | 20 | £22.91 | 5 days | |
| 14I18UNJ | 14 | 18 | £29.81 | In Stock | |
| 14E18UNJ | 14 | 18 | £22.91 | 5 days | |
| 14I16UNJ | 14 | 16 | £22.91 | 5 days | |
| 14E16UNJ | 14 | 16 | £22.91 | 5 days | |
| 14I14UNJ | 14 | 14 | £22.91 | 5 days | |
| 14E14UNJ | 14 | 14 | £22.91 | 5 days | |
| 14I12UNJ Viewing | 14 | 12 | £22.91 | 5 days | |
| 14E12UNJ | 14 | 12 | £22.91 | 5 days | |
| 21I24UNJ | 21 | 24 | £30.44 | 5 days | |
| 21E24UNJ | 21 | 24 | £30.44 | 5 days | |
| 21I20UNJ | 21 | 20 | £30.44 | 5 days | |
| 21E20UNJ | 21 | 20 | £30.44 | 5 days | |
| 21I18UNJ | 21 | 18 | £30.44 | 5 days | |
| 21E18UNJ | 21 | 18 | £30.44 | 5 days | |
| 21I16UNJ | 21 | 16 | £30.44 | 5 days | |
| 21E16UNJ | 21 | 16 | £30.44 | 5 days | |
| 21I14UNJ | 21 | 14 | £30.44 | 5 days | |
| 21E14UNJ | 21 | 14 | £30.44 | 5 days | |
| 21I12UNJ | 21 | 12 | £39.62 | In Stock | |
| 21E12UNJ | 21 | 12 | £30.44 | 5 days |
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