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Carmex Thread Turning External Insert - UN (UNC,UNF,UNEF,UNS) - Right Hand - 16VER20UNBMA

Carmex Thread Turning External Insert - UN (UNC,UNF,UNEF,UNS) - Right Hand - 16VER20UNBMA

SKU:16VER20UNBMA

The Carmex Thread Turning External Insert is engineered to tackle external thread cutting across UNC, UNF, UNEF, and UNS standards. This versatile insert is ideal for engineers, machinists, fabri... Read more ↓
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Thread TypeExternal
Thread DirectionRight Hand
Thread FormUN (UNC UNF UNEF UNS)
Pitch20
Insert Size16 Vertical
GradeBMA
Download Cutting Data
£12.93
Prices shown ex. VAT
5 days estimated lead time — subject to availability
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The Carmex Thread Turning External Insert is engineered to tackle external thread cutting across UNC, UNF, UNEF, and UNS standards. This versatile insert is ideal for engineers, machinists, fabricators, and hobbyists who need dependable threading performance across a range of materials and applications.

Its laydown triangular geometry delivers stable engagement and efficient chip control, helping you achieve clean, consistent threads with fewer passes and reduced tool wear—from simple tasks to more demanding threading jobs.

  • Broad thread standard compatibility: Designed to handle UNC, UNF, UNEF, and UNS external threads, reducing tool changes and increasing uptime in production and maintenance work.
  • Laydown triangular geometry for stability: Provides steady cutting action and excellent chip evacuation, delivering reliable finishes across a wide range of applications.
  • Right-hand external threading orientation: Optimized for turning right-hand threads externally, offering predictable performance and smooth operation in everyday threading tasks.

By combining wide compatibility with stable, easy cutting, this insert helps you speed up setup, minimize downtime, and achieve consistent thread quality across jobs—whether in a busy workshop, on a maintenance line, or in a precision fabrication environment.

Thread Type External
Thread Direction Right Hand
Thread Form UN (UNC UNF UNEF UNS)
Pitch 20
Insert Size 16 Vertical
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.

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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.
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Full Range: Carmex Thread Turning External Inserts - Vertical - Unified - Right/Left Hand

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You are viewing 16VER20UNBMA. Click any other SKU to view its full details.

Product SKUThread TypeThread DirectionThread FormPitchInsert SizeGradePriceStock Order
16VEL10UNBMA ExternalLeft HandUN (UNC UNF UNEF UNS)1016 VerticalBMA£12.93 5 days
16VEL12UNBMA ExternalLeft HandUN (UNC UNF UNEF UNS)1216 VerticalBMA£12.93 5 days
16VEL14UNBMA ExternalLeft HandUN (UNC UNF UNEF UNS)1416 VerticalBMA£12.93 5 days
16VEL16UNBMA ExternalLeft HandUN (UNC UNF UNEF UNS)1616 VerticalBMA£12.93 5 days
16VEL18UNBMA ExternalLeft HandUN (UNC UNF UNEF UNS)1816 VerticalBMA£12.93 5 days
16VEL20UNBMA ExternalLeft HandUN (UNC UNF UNEF UNS)2016 VerticalBMA£12.93 5 days
16VEL24UNBMA ExternalLeft HandUN (UNC UNF UNEF UNS)2416 VerticalBMA£12.93 5 days
16VEL28UNBMA ExternalLeft HandUN (UNC UNF UNEF UNS)2816 VerticalBMA£12.93 5 days
16VEL32UNBMA ExternalLeft HandUN (UNC UNF UNEF UNS)3216 VerticalBMA£12.93 5 days
16VEL8UNBMA ExternalLeft HandUN (UNC UNF UNEF UNS)816 VerticalBMA£12.93 5 days
16VER10UNBMA ExternalRight HandUN (UNC UNF UNEF UNS)1016 VerticalBMA£12.93 5 days
16VER12UNBMA ExternalRight HandUN (UNC UNF UNEF UNS)1216 VerticalBMA£12.93 5 days
16VER14UNBMA ExternalRight HandUN (UNC UNF UNEF UNS)1416 VerticalBMA£12.93 5 days
16VER16UNBMA ExternalRight HandUN (UNC UNF UNEF UNS)1616 VerticalBMA£12.93 5 days
16VER18UNBMA ExternalRight HandUN (UNC UNF UNEF UNS)1816 VerticalBMA£11.00 In Stock
16VER20UNBMA ViewingExternalRight HandUN (UNC UNF UNEF UNS)2016 VerticalBMA£12.93 5 days
16VER24UNBMA ExternalRight HandUN (UNC UNF UNEF UNS)2416 VerticalBMA£12.93 In Stock
16VER28UNBMA ExternalRight HandUN (UNC UNF UNEF UNS)2816 VerticalBMA£12.93 5 days
16VER32UNBMA ExternalRight HandUN (UNC UNF UNEF UNS)3216 VerticalBMA£12.93 5 days
16VER8UNBMA ExternalRight HandUN (UNC UNF UNEF UNS)816 VerticalBMA£12.93 In Stock