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OSG Threading Tap - UNC Spiral Point HSS-E - Steam Oxide Coated - Through Hole - No. 12 x 24
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Description
The OSG UNC Spiral Point Threading Tap No. 12 x 24 is a high-performance through-hole tapping tool designed for professionals who demand precise, durable UNC threads. Crafted from cobalt-enhanced HSS-E and finished with a Steam Oxide coating, it delivers reliable cutting performance in demanding metalworking tasks.
- Size and thread form: No. 12 UNC spiral-point threading tap designed for through-hole applications.
- Material and coating: HSS‑E (high-speed steel with cobalt) with a Steam Oxide coating for improved hardness and wear resistance.
- Chip evacuation: Spiral‑point geometry that pushes chips ahead of the flute, promoting efficient tapping in through-holes.
- Durability and precision: Engineered to deliver consistently accurate threads and extended tool life under demanding use.
- Application fit: Specifically optimized for through-hole tapping with reliable performance in common machinable metals.
- Technology support: Backed by OSG’s advanced threading technology for dependable results in critical jobs.
Whether you’re fabricating new assemblies, repairing threads, or maintaining production lines, this tap helps you achieve clean, correctly formed UNC threads with minimal rework. The cobalt-enhanced HSS-E material handles higher cutting temperatures, while the Steam Oxide finish adds wear resistance and lubricity for smoother cuts. The spiral-point design enhances chip control in through-holes, enabling steady feeds and reduced risk of tap breakage in deeper holes. No. 12 x 24 threads produced are strong, repeatable, and compatible with standard fasteners, supporting reliable performance in essential components.
Part Numbers
- Protool Part Number
- OSG-22104684
- Brand
- OSG
- 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: OSG Threading Taps - UNC Spiral Point HSS-E - Steam Oxide Coated - Through Hole
View full collection →You are viewing OSG-22104684. Click any other SKU to view its full details.
| Product SKU | Size | Pitch | Flute Length | Shank Diameter | Overall Length | Price | Stock | Order |
|---|---|---|---|---|---|---|---|---|
| OSG-22104514 | No. 1 | 64 | 8 | 2.5 | 41 | £71.26 | In Stock | |
| OSG-22104534 | No. 2 | 56 | 9.5 | 2.8 | 44.5 | £50.39 | In Stock | |
| OSG-22104554 | No. 3 | 48 | 9.5 | 2.8 | 44.5 | £50.39 | In Stock | |
| OSG-22104574 | No. 4 | 40 | 11 | 3.15 | 48 | £31.02 | In Stock | |
| OSG-22104594 | No. 5 | 40 | 11 | 3.15 | 48 | £31.02 | 1-2 days | |
| OSG-22104614 | No. 6 | 32 | 13 | 3.55 | 50 | £18.94 | In Stock | |
| OSG-22104644 | No. 8 | 32 | 13 | 4.5 | 53 | £18.94 | In Stock | |
| OSG-22104664 | No. 10 | 24 | 16 | 5 | 58 | £18.94 | In Stock | |
| OSG-22104684 Viewing | No. 12 | 24 | 17 | 5.6 | 62 | £22.59 | 1-2 days | |
| OSG-22104714 | 1/4 | 20 | 19 | 6.3 | 66 | £15.81 | In Stock | |
| OSG-22104744 | 5/16 | 18 | 22 | 8 | 72 | £17.88 | In Stock | |
| OSG-22104794 | 3/8 | 16 | 24 | 10 | 80 | £22.59 | In Stock | |
| OSG-22104844 | 7/16 | 14 | 25 | 8 | 85 | £32.50 | In Stock | |
| OSG-22104894 | 1/2 | 13 | 29 | 9 | 89 | £32.66 | In Stock | |
| OSG-22104944 | 9/16 | 12 | 30 | 11.2 | 95 | £41.36 | In Stock | |
| OSG-22105014 | 5/8 | 11 | 32 | 12.5 | 102 | £48.49 | In Stock | |
| OSG-22105154 | 3/4 | 10 | 37 | 14 | 112 | £72.75 | In Stock | |
| OSG-22105264 | 7/8 | 9 | 38 | 16 | 118 | £100.83 | In Stock | |
| OSG-22105384 | 1 | 8 | 45 | 18 | 130 | £120.78 | In Stock | |
| OSG-22105514 | 1.1/8 | 7 | 48 | 20 | 138 | £208.59 | In Stock | |
| OSG-22105644 | 1.1/4 | 7 | 51 | 22.4 | 151 | £267.69 | In Stock |
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