Please log in here to access all benefits, including promotional discounts and faster checkouts.


OSG Threading Tap - UNF Spiral Flute HSS-E - Steam Oxide Coated - Blind Hole - No. 8 x 36
| Form | UNF |
| Size | No. 8 |
| Pitch | 36 |
| Flute Length | 13 |
| Shank Diameter | 4.5 |
| Overall Length | 53 |
Learn more about Klarna
The OSG UNF Spiral Flute Threading Tap in No. 8 x 36 is a precision tool designed for blind-hole threading in metalworking. Crafted from HSS-E (high-speed steel with cobalt) and finished with a Steam Oxide coating, it delivers dependable performance and extended tool life under demanding machining conditions.
- Threading Type: UNF spiral flute design optimized for efficient chip evacuation in blind holes.
- Material & Coating: HSS-E (high-speed steel with cobalt) with a durable Steam Oxide finish for enhanced wear and heat resistance.
- Size & Length: No. 8 threading size with a 36 mm overall length, suitable for a wide range of applications.
- Flute Design: Spiral flutes improve cutting action and help prevent chip clogging during tapping.
- Application: Specifically engineered for blind-hole tapping where chip evacuation is challenging.
- Brand & Precision: OSG’s advanced threading technology ensures accurate thread forms and longer tool life.
Designed for reliability in critical machining tasks, this tap delivers clean, precise threads with consistent pitch and minimal runout. The combination of cobalt-enhanced steel and Steam Oxide coating withstands heat and wear, making it well-suited for production runs, maintenance work, and repair projects that require durable, repeatable results in blind-hole environments.
| Form | UNF |
| Size | No. 8 |
| Pitch | 36 |
| Flute Length | 13 |
| Shank Diameter | 4.5 |
| Overall Length | 53 |
| 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-22204654. 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 Viewing | 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 | 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 |
No products match your filters.