Please log in here to access all benefits, including promotional discounts and faster checkouts.
OSG Threading Tap - UNF Spiral Point HSS-E - Steam Oxide Coated - Through Hole - No. 4 x 48
| Form | UNF |
| Size | No. 4 |
| Pitch | 48 |
| Flute Length | 11 |
| Shank Diameter | 3.15 |
| Overall Length | 48 |
Learn more about Klarna
Achieve precision threading with the OSG UNF Spiral Point Threading Tap, engineered for through-hole applications and demanding machining tasks. Crafted from cobalt-enhanced high-speed steel and finished with a durable Steam Oxide coating, this tap delivers dependable performance and long tool life.
- Threading format: UNF spiral point design for efficient chip evacuation and fast, clean thread formation in through-holes.
- Material: HSS‑E (high-speed steel with cobalt) for enhanced hardness, wear resistance, and heat tolerance.
- Coating: Steam Oxide coating to improve wear resistance and lubrication retention during cutting.
- Application: Specifically optimized for through-hole tapping, helping you reach full thread depth with consistency.
- Size: No. 4 x 48, suitable for precise small-pitch UNF threads and compact workpieces.
- Brand technology: Built on OSG’s advanced threading technology to deliver accurate threads and dependable performance across production runs.
This tap supports tighter tolerances and reliable thread quality while extending tool life thanks to its cobalt-enhanced carbide-friendly steel and protective coating. The spiral point design directs chips forward for smoother cutting, reducing clogging in through-holes and minimizing the need for rework. Ideal for shops that demand repeatable results in precision fastening tasks, this tap pairs with compatible HSS taps and machines to elevate throughput and consistency in metalworking projects.
| Form | UNF |
| Size | No. 4 |
| Pitch | 48 |
| Flute Length | 11 |
| Shank Diameter | 3.15 |
| Overall Length | 48 |
| Substrate | HSS-E |
| Style | Spiral Point |
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 Point HSS-E - Steam Oxide Coated - Through Hole
View full collection →You are viewing OSG-22104584. Click any other SKU to view its full details.
| Product SKU | Size | Pitch | Flute Length | Shank Diameter | Overall Length | Price | Stock | Order |
|---|---|---|---|---|---|---|---|---|
| OSG-22104504 | No. 0 | 80 | 8 | 2.5 | 40 | £126.88 | In Stock | |
| OSG-22104524 | No. 1 | 72 | 8 | 2.5 | 41 | £71.26 | In Stock | |
| OSG-22104544 | No. 2 | 64 | 9.5 | 2.8 | 44.5 | £50.39 | In Stock | |
| OSG-22104564 | No. 3 | 56 | 9.5 | 2.8 | 44.5 | £50.39 | In Stock | |
| OSG-22104584 Viewing | No. 4 | 48 | 11 | 3.15 | 48 | £31.02 | In Stock | |
| OSG-22104604 | No. 5 | 44 | 11 | 3.15 | 48 | £31.02 | In Stock | |
| OSG-22104624 | No. 6 | 40 | 13 | 3.55 | 50 | £18.94 | In Stock | |
| OSG-22104654 | No. 8 | 36 | 13 | 4.5 | 53 | £18.94 | 1-2 days | |
| OSG-22104674 | No. 10 | 32 | 16 | 5 | 58 | £18.94 | In Stock | |
| OSG-22104694 | No. 12 | 28 | 17 | 5.6 | 62 | £22.59 | In Stock | |
| OSG-22104724 | 1/4 | 28 | 19 | 6.3 | 66 | £15.81 | In Stock | |
| OSG-22104764 | 5/16 | 24 | 22 | 8 | 72 | £17.88 | In Stock | |
| OSG-22104814 | 3/8 | 24 | 24 | 10 | 80 | £22.59 | In Stock | |
| OSG-22104864 | 7/16 | 20 | 25 | 8 | 85 | £32.50 | In Stock | |
| OSG-22104914 | 1/2 | 20 | 29 | 9 | 89 | £32.66 | In Stock | |
| OSG-22104964 | 9/16 | 18 | 30 | 11.2 | 95 | £41.36 | In Stock | |
| OSG-22105044 | 5/8 | 18 | 32 | 12.5 | 102 | £48.49 | In Stock | |
| OSG-22105174 | 3/4 | 16 | 37 | 14 | 112 | £72.75 | In Stock | |
| OSG-22105284 | 7/8 | 14 | 38 | 16 | 118 | £100.83 | In Stock | |
| OSG-22105394 | 1 | 12 | 45 | 18 | 130 | £120.78 | 1-2 days | |
| OSG-22105534 | 1.1/8 | 12 | 37 | 20 | 127 | £208.59 | 1-2 days | |
| OSG-22105664 | 1.1/4 | 12 | 37 | 22 | 137 | £267.69 | 1-2 days |
No products match your filters.
