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Carmex Threading Tap - Spiral Point - UNC Supercut Tap - Powder Metal - No. 4 x 40
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Description
The Carmex Threading Tap is a precision spiral-point tool designed for Unified National Coarse (UNC) threading. Built from powder metal for durability and equipped with spiral-point geometry, it excels in high-speed production and challenging materials.
- Construction: Powder Metal construction delivers wear resistance and long tool life in tough materials and high-speed threading.
- Design: Spiral Point geometry channels chips forward, improving evacuation and reducing the risk of chips binding in through-holes.
- Thread Standard: UNC (Unified National Coarse) threading provides robust, standard coarse threads for quick assembly and strong holds.
- Size & Length: No. 4 cutting size with an overall length of 40 mm.
- Brand & Type: Carmex with Supercut designation, engineered for reliable performance in metalworking and fabrication tasks.
With this tap, you’ll achieve consistent, clean UNC threads with minimal rework. The powder-metal construction offers durability for tough materials and high-speed threading, while the spiral-point geometry efficiently evacuates chips, reducing the chance of clogging in through-holes. The No. 4 x 40 size is versatile for a wide range of applications, from maintenance to production runs, delivering reliable performance in metalworking tasks.
Part Numbers
- Protool Part Number
- CTPD371B440UNC2BXXT3
- Brand
- Carmex
- Category
- Threading Tap
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.
Full Range: Carmex Threading Taps - Spiral Point - UNC Supercut Tap - Powder Metal
View full collection →You are viewing CTPD371B440UNC2BXXT3. Click any other SKU to view its full details.
| Product SKU | Size | Pitch | Overall Length | Flute Length | Square | Drill Diameter | Price | Stock | Order |
|---|---|---|---|---|---|---|---|---|---|
| CTPD371B256UNC2BXXT3 | No. 2 | 56 | 45 | 10 | 2.1 | 1.85 | £35.02 | 5 days | |
| CTPD371B440UNC2BXXT3 Viewing | No. 4 | 40 | 56 | 5 | 2.7 | 2.35 | £26.74 | In Stock | |
| CTPD371B540UNC2BXXT3 | No. 5 | 40 | 56 | 7 | 2.7 | 2.65 | £26.74 | 5 days | |
| CTPD371B632UNC2BXXT3 | No. 6 | 32 | 56 | 6 | 3 | 2.85 | £28.10 | 5 days | |
| CTPD371B832UNC2BXXT3 | No. 8 | 32 | 63 | 7 | 3.4 | 3.5 | £30.60 | 5 days | |
| CTPD371B1024UNC2BXXT3 | No. 10 | 24 | 70 | 8 | 4.9 | 3.9 | £30.60 | 5 days | |
| CTPD371B1224UNC2BXXT3 | No. 12 | 24 | 80 | 10 | 4.9 | 4.5 | £31.66 | 5 days | |
| CTPD371B025020UNC2BXXT3 | 1/4 | 20 | 80 | 13 | 5.5 | 5.1 | £38.04 | 5 days | |
| CTPD371B031218UNC2BXXT3 | 5/16 | 18 | 90 | 13 | 6 | 6.6 | £38.04 | 5 days | |
| CTPD371B037516UNC2BXXT3 | 3/8 | 16 | 100 | 15 | 8 | 8 | £50.00 | 5 days | |
| CTPD376B043714UNC2BXXT3 | 7/16 | 14 | 100 | 15 | 6.2 | 9.4 | £65.00 | 5 days | |
| CTPD376B050013UNC2BXXT3 | 1/2 | 13 | 110 | 18 | 7 | 10.8 | £87.50 | 5 days | |
| CTPD376B056212UNC2BXXT3 | 9/16 | 12 | 110 | 20 | 9 | 12.2 | £87.50 | 5 days | |
| CTPD376B062511UNC2BXXT3 | 5/8 | 11 | 110 | 22 | 9 | 13.5 | £103.92 | 5 days |
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