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Carmex Carbide Threading Insert - Unified - TiAlN Coated - 12I24UN
| Application | Threading |
| Thread Form | UN |
| Internal or External | Internal |
| Insert Size | 12 |
| Pitch | 24 |
Learn more about Klarna
The Carmex Carbide Threading Insert is a unified, TiAlN-coated solution built for shops that machine a range of standard thread profiles. Designed for reliability and versatility, it streamlines threading operations without sacrificing accuracy.
- Thread profiles covered: A versatile collection that supports all common thread profiles, reducing tool changes on multi-profile runs.
- Available lengths: Five lengths from 12 mm to 40 mm, letting you tailor the insert to hole size and depth of cut.
- Pitch range: Depending on the length, handles pitches from 0.5 mm (32 TPI) up to 6.0 mm (4 TPI) for broad compatibility.
- Double‑sided cutting edges: Each insert offers two cutting edges for extended life and lower tooling costs (excluding BSPT/NPT/NPTF/American Buttress/API RD profiles).
- Internal/external capability: For many thread profiles, the same insert machines both internal and external threads, minimizing tool inventory (with some exceptions like ISO/UN/NPSM/UNJ/Acme).
- Coating and material: TiAlN-coated carbide provides improved hardness and heat resistance, helping maintain precision under demanding conditions.
- Unified 12I24UN geometry: Engineered for Unified thread standards, delivering consistent performance across common UN/UNC applications.
This single, well‑engineered insert is ideal for machinists performing mixed-thread projects, prototypes, or high‑mix production where versatility and durability matter most. Its design supports efficient use across diverse materials, while the TiAlN coating extends life in heat‑generating applications and helps sustain thread accuracy over time.
| Application | Threading |
| Thread Form | UN |
| Internal or External | Internal |
| Insert Size | 12 |
| Pitch | 24 |
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 - Unified - TiAlN Coated
View full collection →You are viewing 12I24UN. Click any other SKU to view its full details.
| Product SKU | Insert Size | Pitch | Price | Stock | Order |
|---|---|---|---|---|---|
| 12I16UN | 12 | 16 | £26.50 | In Stock | |
| 12I18UN | 12 | 18 | £26.50 | 5 days | |
| 12I20UN | 12 | 20 | £26.50 | In Stock | |
| 12I24UN Viewing | 12 | 24 | £26.50 | 5 days | |
| 12I28UN | 12 | 28 | £26.50 | In Stock | |
| 12I32UN | 12 | 32 | £26.50 | In Stock | |
| 14E10UN | 14 | 10 | £32.37 | 5 days | |
| 14E11UN | 14 | 11 | £32.37 | 5 days | |
| 14E12UN | 14 | 12 | £26.50 | In Stock | |
| 14E14UN | 14 | 14 | £26.50 | In Stock | |
| 14E16UN | 14 | 16 | £26.50 | In Stock | |
| 14E18UN | 14 | 18 | £26.50 | 5 days | |
| 14E20UN | 14 | 20 | £26.50 | In Stock | |
| 14E24UN | 14 | 24 | £26.50 | In Stock | |
| 14E28UN | 14 | 28 | £26.50 | In Stock | |
| 14E32UN | 14 | 32 | £26.50 | 5 days | |
| 14I10UN | 14 | 10 | £26.50 | In Stock | |
| 14I11UN | 14 | 11 | £26.50 | In Stock | |
| 14I12UN | 14 | 12 | £26.50 | In Stock | |
| 14I14UN | 14 | 14 | £26.50 | 5 days | |
| 14I16UN | 14 | 16 | £26.50 | In Stock | |
| 14I18UN | 14 | 18 | £26.50 | In Stock | |
| 14I20UN | 14 | 20 | £26.50 | In Stock | |
| 14I24UN | 14 | 24 | £26.50 | In Stock | |
| 14I27UN | 14 | 27 | £26.50 | In Stock | |
| 14I28UN | 14 | 28 | £26.50 | In Stock | |
| 14I32UN | 14 | 32 | £26.50 | In Stock | |
| 14I9UN | 14 | 9 | £26.50 | In Stock | |
| 21E10UN | 21 | 10 | £35.22 | 5 days | |
| 21E11UN | 21 | 11 | £43.03 | 5 days | |
| 21E12UN | 21 | 12 | £35.22 | 5 days | |
| 21E14UN | 21 | 14 | £35.22 | 5 days | |
| 21E16UN | 21 | 16 | £35.22 | In Stock | |
| 21E18UN | 21 | 18 | £35.22 | In Stock | |
| 21E20UN | 21 | 20 | £35.22 | In Stock | |
| 21E24UN | 21 | 24 | £35.22 | In Stock | |
| 21I10UN | 21 | 10 | £35.22 | In Stock | |
| 21I12UN | 21 | 12 | £35.22 | 5 days | |
| 21I14UN | 21 | 14 | £35.22 | In Stock | |
| 21I16UN | 21 | 16 | £35.22 | In Stock | |
| 21I18UN | 21 | 18 | £35.22 | In Stock | |
| 21I20UN | 21 | 20 | £35.22 | In Stock | |
| 21I24UN | 21 | 24 | £35.22 | In Stock | |
| 21I7UN | 21 | 7 | £35.22 | In Stock | |
| 21I8UN | 21 | 8 | £35.22 | In Stock | |
| 30E10UN | 30 | 10 | £48.30 | 5 days | |
| 30E12UN | 30 | 12 | £48.30 | 5 days | |
| 30E14UN | 30 | 14 | £48.30 | 5 days | |
| 30E16UN | 30 | 16 | £48.30 | 5 days | |
| 30E18UN | 30 | 18 | £48.30 | 5 days | |
| 30E20UN | 30 | 20 | £48.30 | 5 days | |
| 30E6UN | 30 | 6 | £48.30 | 5 days | |
| 30E8UN | 30 | 8 | £48.30 | 5 days | |
| 30I10UN | 30 | 10 | £48.30 | 5 days | |
| 30I12UN | 30 | 12 | £48.30 | In Stock | |
| 30I14UN | 30 | 14 | £48.30 | 5 days | |
| 30I16UN | 30 | 16 | £48.30 | 5 days | |
| 30I18UN | 30 | 18 | £48.30 | In Stock | |
| 30I20UN | 30 | 20 | £48.30 | 5 days | |
| 30I5UN | 30 | 5 | £48.30 | In Stock | |
| 30I6UN | 30 | 6 | £48.30 | 5 days | |
| 30I8UN | 30 | 8 | £48.30 | 5 days | |
| 40E10UN | 40 | 10 | £83.54 | 5 days | |
| 40E12UN | 40 | 12 | £83.54 | 5 days | |
| 40E14UN | 40 | 14 | £83.54 | 5 days | |
| 40E16UN | 40 | 16 | £83.54 | 5 days | |
| 40E6UN | 40 | 6 | £83.54 | 5 days | |
| 40E8UN | 40 | 8 | £83.54 | 5 days | |
| 40I10UN | 40 | 10 | £83.54 | 5 days | |
| 40I12UN | 40 | 12 | £83.54 | 5 days | |
| 40I14UN | 40 | 14 | £83.54 | 5 days | |
| 40I16UN | 40 | 16 | £83.54 | 5 days | |
| 40I4.5UN | 40 | 4.5 | £83.54 | 5 days | |
| 40I4UN | 40 | 4 | £83.54 | 5 days | |
| 40I6UN | 40 | 6 | £83.54 | 5 days | |
| 40I8UN | 40 | 8 | £83.54 | 5 days |
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