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OSG Threading Tap - UNF Spiral Flute HSS-E - Steam Oxide Coated - Blind Hole - 3/8 x 24
| Form | UNF |
| Size | 3/8 |
| Pitch | 24 |
| Flute Length | 24 |
| Shank Diameter | 10 |
| Overall Length | 80 |
Learn more about Klarna
The OSG UNF Spiral Flute Threading Tap, 3/8-24 UNF, is a high-performance threading tool designed for precise blind-hole applications. Built for professionals who demand repeatable thread quality and long tool life, it pairs robust construction with efficient operation in demanding materials.
- Thread Type: UNF spiral flute threading tap optimized for reliable threading in blind holes
- Size & Pitch: 3/8-24 UNF (3/8 in diameter, 24 threads per inch)
- Material: HSS-E (high-speed steel with cobalt) for enhanced hardness and wear resistance
- Coating: Steam Oxide coating to improve heat resistance and durability
- Flute Design: Spiral flutes for efficient chip evacuation and reduced binding in deep holes
- Applications: Ideal for precision threading in metal components with blind holes
- Brand & Technology: OSG advanced threading technology delivering consistent, high-quality results
The combination of HSS-E cobalt with a steam oxide finish delivers outstanding durability and heat resistance, helping you maintain accurate thread form under cutting pressures. The spiral flute geometry promotes rapid chip removal, minimizing the risk of clogging and tapping errors in blind holes. This tap is well-suited for critical machining tasks where reliable thread integrity and extended tool life are essential, such as automotive, machinery maintenance, and precision assemblies.
| Form | UNF |
| Size | 3/8 |
| Pitch | 24 |
| Flute Length | 24 |
| Shank Diameter | 10 |
| Overall Length | 80 |
| Substrate | HSS-E |
| Style | Spiral Flute |
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: OSG Threading Taps - UNF Spiral Flute HSS-E - Steam Oxide Coated - Blind Hole
View full collection →You are viewing OSG-22204814. Click any other SKU to view its full details.
| Product SKU | Size | Pitch | Flute Length | Shank Diameter | Overall Length | Price | Stock | Order |
|---|---|---|---|---|---|---|---|---|
| OSG-22204544 | No. 2 | 64 | 9.8 | 2.8 | 44.5 | £61.26 | In Stock | |
| OSG-22204564 | No. 3 | 56 | 9.5 | 2.8 | 44.5 | £61.26 | 1-2 days | |
| OSG-22204584 | No. 4 | 48 | 11 | 3.15 | 48 | £39.97 | In Stock | |
| OSG-22204604 | No. 5 | 44 | 11 | 3.15 | 48 | £39.97 | In Stock | |
| OSG-22204624 | No. 6 | 40 | 13 | 3.55 | 50 | £24.13 | In Stock | |
| OSG-22204654 | No. 8 | 36 | 13 | 4.5 | 53 | £24.13 | In Stock | |
| OSG-22204674 | No. 10 | 32 | 16 | 5 | 58 | £24.13 | In Stock | |
| OSG-22204694 | No. 12 | 28 | 17 | 5.6 | 62 | £29.55 | In Stock | |
| OSG-22204724 | 1/4 | 28 | 19 | 6.3 | 66 | £20.00 | In Stock | |
| OSG-22204764 | 5/16 | 24 | 22 | 8 | 72 | £23.19 | In Stock | |
| OSG-22204814 Viewing | 3/8 | 24 | 24 | 10 | 80 | £29.55 | In Stock | |
| OSG-22204864 | 7/16 | 20 | 25 | 8 | 85 | £41.11 | In Stock | |
| OSG-22204914 | 1/2 | 20 | 29 | 9 | 89 | £41.63 | In Stock | |
| OSG-22204964 | 9/16 | 18 | 30 | 11.2 | 95 | £53.03 | In Stock | |
| OSG-22205044 | 5/8 | 18 | 32 | 12.5 | 102 | £61.69 | In Stock | |
| OSG-22205174 | 3/4 | 16 | 37 | 14 | 112 | £92.73 | In Stock | |
| OSG-22205284 | 7/8 | 14 | 38 | 16 | 118 | £128.64 | In Stock | |
| OSG-22205394 | 1 | 12 | 45 | 18 | 130 | £154.71 | In Stock | |
| OSG-22205534 | 1.1/8 | 12 | 48 | 20 | 138 | £265.95 | In Stock | |
| OSG-22205664 | 1.1/4 | 12 | 51 | 22.4 | 151 | £338.98 | 1-2 days |
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