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Carmex Thread Turning External Insert - UNJ (UNJC UNJF UNJEF UNJS) - Right Hand - 16ER20UNJBMA
| Thread Type | External |
| Thread Direction | Right Hand |
| Thread Form | UNJ (UNJC UNJF UNJEF UNJS) |
| Pitch | 20 |
| Insert Size | 16 |
| Grade | BMA |
Learn more about Klarna
Carmex Thread Turning External Insert for UNJ is a precision turning insert designed for external thread work with right-hand orientation. Part of our industry-leading range, this laydown triangular insert covers UNJ thread standards including UNJC, UNJF, UNJEF and UNJS, making it a versatile solution for a wide variety of threading tasks. Model code 16ER20UNJBMA identifies its right-hand configuration and application fit.
- Broad UNJ compatibility: Supports external UNJ forms (UNJC, UNJF, UNJEF, UNJS), enabling you to tackle multiple thread types with a single insert and reduce tool changes.
- Triangular laydown geometry for stable engagement: The laydown triangular profile provides secure seating and consistent cutting action across thread profiles, helping you achieve reliable results.
- Right-hand threading design: Specifically engineered for right-hand external threads, ensuring correct orientation and dependable performance on standard workpieces.
This insert helps you streamline threading workflows by reducing inventory needs, shortening setup times, and delivering dependable thread quality across basic to demanding applications. Whether you’re an engineer, buyer, tradesperson, or hobbyist, you gain a versatile, reliable tool that fits a broad range of UNJ threading tasks with confidence.
| Thread Type | External |
| Thread Direction | Right Hand |
| Thread Form | UNJ (UNJC UNJF UNJEF UNJS) |
| Pitch | 20 |
| Insert Size | 16 |
| Grade | BMA |
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 Thread Turning External Inserts - UNJ - Right/Left Hand
View full collection →You are viewing 16ER20UNJBMA. Click any other SKU to view its full details.
| Product SKU | Thread Type | Thread Direction | Thread Form | Pitch | Insert Size | Grade | Price | Stock | Order |
|---|---|---|---|---|---|---|---|---|---|
| 16ER10UNJBMA | External | Right Hand | UNJ (UNJC UNJF UNJEF UNJS) | 10 | 16 | BMA | £12.06 | In Stock | |
| 16ER11UNJBMA | External | Right Hand | UNJ (UNJC UNJF UNJEF UNJS) | 11 | 16 | BMA | £12.06 | In Stock | |
| 16ER12UNJBMA | External | Right Hand | UNJ (UNJC UNJF UNJEF UNJS) | 12 | 16 | BMA | £12.06 | 5 days | |
| 16ER13UNJBMA | External | Right Hand | UNJ (UNJC UNJF UNJEF UNJS) | 13 | 16 | BMA | £12.06 | In Stock | |
| 16ER14UNJBMA | External | Right Hand | UNJ (UNJC UNJF UNJEF UNJS) | 14 | 16 | BMA | £12.06 | 5 days | |
| 16ER16UNJBMA | External | Right Hand | UNJ (UNJC UNJF UNJEF UNJS) | 16 | 16 | BMA | £12.06 | In Stock | |
| 16ER18UNJBMA | External | Right Hand | UNJ (UNJC UNJF UNJEF UNJS) | 18 | 16 | BMA | £12.06 | In Stock | |
| 16ER20UNJBMA Viewing | External | Right Hand | UNJ (UNJC UNJF UNJEF UNJS) | 20 | 16 | BMA | £12.06 | In Stock | |
| 16ER24UNJBMA | External | Right Hand | UNJ (UNJC UNJF UNJEF UNJS) | 24 | 16 | BMA | £12.06 | In Stock | |
| 16ER28UNJBMA | External | Right Hand | UNJ (UNJC UNJF UNJEF UNJS) | 28 | 16 | BMA | £12.06 | In Stock | |
| 16ER32UNJBMA | External | Right Hand | UNJ (UNJC UNJF UNJEF UNJS) | 32 | 16 | BMA | £12.06 | 5 days | |
| 16ER36UNJBMA | External | Right Hand | UNJ (UNJC UNJF UNJEF UNJS) | 36 | 16 | BMA | £15.71 | In Stock | |
| 16ER40UNJBMA | External | Right Hand | UNJ (UNJC UNJF UNJEF UNJS) | 40 | 16 | BMA | £15.71 | In Stock | |
| 16ER44UNJBMA | External | Right Hand | UNJ (UNJC UNJF UNJEF UNJS) | 44 | 16 | BMA | £15.71 | In Stock | |
| 16ER48UNJBMA | External | Right Hand | UNJ (UNJC UNJF UNJEF UNJS) | 48 | 16 | BMA | £15.71 | In Stock | |
| 16ER8UNJBMA | External | Right Hand | UNJ (UNJC UNJF UNJEF UNJS) | 8 | 16 | BMA | £12.06 | 5 days | |
| 16ER9UNJBMA | External | Right Hand | UNJ (UNJC UNJF UNJEF UNJS) | 9 | 16 | BMA | £12.06 | In Stock |
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