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Carmex Carbide Threading Insert - UNJ - TiAlN Coated - 14I12UNJ

SKU:14I12UNJ

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... Read more ↓
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ApplicationThreading
Thread FormUNJ
Internal or ExternalInternal
Insert Size14
Pitch12
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£22.91
Prices shown ex. VAT
5 days estimated lead time — subject to availability
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01732 887334
Mon – Thurs 8:30 – 17:30 · Fri 8:30 – 16:30

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.

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Staff are very helpful and interested in providing a good service making us the customer feel valued.
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first place we look
honest about stock and prices are competitive.
Phil
★★★★★
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Staff are very helpful and polite.Goods that were in stock were dispatched same day and back orders were quick in coming through .
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★★★★★
Buying experience
Phone requests are handled quickly and without any fuss. The website is easy to use and straightforward to order from. It’s especially helpful that it shows real‑time availability, so we don’t need to call to confirm whether parts will arrive.
Jeremy

Full Range: Carmex Carbide Threading Inserts - UNJ - TiAlN Coated

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You are viewing 14I12UNJ. Click any other SKU to view its full details.

Product SKUInsert SizePitchPriceStock Order
14I24UNJ 1424£22.91 5 days
14E24UNJ 1424£22.91 5 days
14I20UNJ 1420£22.91 5 days
14E20UNJ 1420£22.91 5 days
14I18UNJ 1418£29.81 In Stock
14E18UNJ 1418£22.91 5 days
14I16UNJ 1416£22.91 5 days
14E16UNJ 1416£22.91 5 days
14I14UNJ 1414£22.91 5 days
14E14UNJ 1414£22.91 5 days
14I12UNJ Viewing1412£22.91 5 days
14E12UNJ 1412£22.91 5 days
21I24UNJ 2124£30.44 5 days
21E24UNJ 2124£30.44 5 days
21I20UNJ 2120£30.44 5 days
21E20UNJ 2120£30.44 5 days
21I18UNJ 2118£30.44 5 days
21E18UNJ 2118£30.44 5 days
21I16UNJ 2116£30.44 5 days
21E16UNJ 2116£30.44 5 days
21I14UNJ 2114£30.44 5 days
21E14UNJ 2114£30.44 5 days
21I12UNJ 2112£39.62 In Stock
21E12UNJ 2112£30.44 5 days