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Carmex Thread Turning External Insert - UNJ (UNJC UNJF UNJEF UNJS) - Right Hand - 16ER40UNJK20

Carmex Thread Turning External Insert - UNJ (UNJC UNJF UNJEF UNJS) - Right Hand - 16ER40UNJK20

SKU:16ER40UNJK20

Carmex Thread Turning External Insert – Right Hand is a precision external threading insert designed to perform across a broad range of UNJ thread standards. Its laydown triangular geometry provi... Read more ↓
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Thread TypeExternal
Thread DirectionRight Hand
Thread FormUNJ (UNJC UNJF UNJEF UNJS)
Pitch40
Insert Size16
GradeK20
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£12.83
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Carmex Thread Turning External Insert – Right Hand is a precision external threading insert designed to perform across a broad range of UNJ thread standards. Its laydown triangular geometry provides stable cutting and clean thread profiles, making it suitable for both simple and demanding threading tasks.

This insert is part of a broad range recognized worldwide for its versatility. It supports external threading applications across the UNJ family (UNJC, UNJF, UNJEF, UNJS), helping you tackle diverse projects with a single tool and minimizing setup complexity.

  • Wide UNJ compatibility (UNJC, UNJF, UNJEF, UNJS): Enables external threading tasks across the major UNJ standards, reducing tool changes and keeping production moving smoothly.
  • Laydown triangular geometry for stable cutting: Provides solid support during cutting, delivering consistent thread profiles and reducing chatter for reliable results on a variety of materials.
  • Right-hand orientation for common threading workflows: Designed to fit standard tooling setups, delivering predictable, easy-to-index performance on typical external threading operations.

Whether you’re upgrading existing tooling, setting up for mixed-thread production, or performing on-site repairs, this insert helps you complete jobs efficiently with consistent quality. Its broad compatibility and robust geometry support faster setup, fewer changes, and dependable results across a wide range of external threading tasks.

Thread Type External
Thread Direction Right Hand
Thread Form UNJ (UNJC UNJF UNJEF UNJS)
Pitch 40
Insert Size 16
Grade K20

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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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