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16ER24UNK20 - Carmex Thread Turning External Insert - UN (UNC,UNF,UNEF,UNS) - Right Hand
| Thread Type | External |
| Thread Direction | Right Hand |
| Thread Form | UN (UNC UNF UNEF UNS) |
| Pitch | 24 |
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Description
Carmex Thread Turning External Insert - UN (UNC, UNF, UNEF, UNS) - Right Hand - 16ER24UNK20 is part of our industry‑leading range of thread turning inserts, designed for reliability and versatility in threading operations. These high‑quality laydown triangular inserts handle the majority of thread standards you encounter—from basic to demanding tasks—making them a practical choice for shops, engineers, and technicians alike.
Designed for right‑hand external threading, this insert delivers clean, consistent threads, and its universal design makes job changes quick and straightforward across common UN thread types.
- Wide thread compatibility: Supports UNC, UNF, UNEF, and UNS threading, enabling a single insert to cover multiple thread standards and streamline tool inventories.
- Triangular laydown geometry for stability: The laydown triangular design provides strong cutting engagement, improving chip control, surface finish, and consistency across both simple and demanding threading tasks.
- Reliable performance for demanding applications: Built to deliver repeatable results under varying materials and conditions, helping reduce rework and downtime in both prototype and production runs.
By choosing this Carmex insert, you simplify tooling, speed up setups, and achieve uniform threads with fewer rework occasions. The design supports efficient, repeatable threading operations, minimizes downtime, and helps your processes stay on schedule from prototype runs to high‑volume production.
Part Numbers
- Protool Part Number
- 16ER24UNK20
- Brand
- Carmex
- Category
- Thread Turning
Delivery
Free UK mainland delivery on orders over £50 ex VAT. In-stock items ordered before 4:30pm are dispatched the same working day. Full delivery information.
Returns
14-day returns on unused stock items in original packaging. Special-order and bespoke tooling is non-returnable. Read our returns policy.
Technical Support
Over 30 years of machining experience behind the counter. Call 01732 887334, Mon–Thurs 8:30–17:30, Fri 8:30–16:30.
Trade Accounts
Credit accounts, contract pricing and scheduled call-off orders available for trade customers. Apply for an account.
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.
