Please log in here to access all benefits, including promotional discounts and faster checkouts.
OSG Threading Tap UNF A-Spiral Flute - Powder Metal Right Hand -TiCN Coated - Blind Holes DIN2184-1 - 1/4 x 20
| Size | 1/4 |
| Pitch | 20 |
| Overall Length | 80 |
| Threading Length | 10.2 |
| Reach | 30 |
| Shank Diameter | 7 |
Learn more about Klarna
The OSG Threading Tap UNF A-Spiral Flute is a high-performance, right-hand tapping tool designed for precise UNF threads in blind holes. Built for durability and consistent results, it’s ideal for shops needing reliable performance in tight, deep pockets.
- Thread Type: UNF (Unified National Fine) with 1/4 x 20 size for common, precision-threaded fasteners.
- Flute Design: A-Spiral flute to promote efficient chip evacuation in blind-hole applications, minimizing clogging and chatter.
- Material: Powder metal body delivering strength and wear resistance under demanding cutting conditions.
- Coating: TiCN coating increases hardness, reduces friction, and extends tool life during high-speed machining.
- Cutting Direction: Right-hand (clockwise) cut for standard tapping setups and compatible tooling.
- DIN Standard: DIN2184-1 compliance ensures consistent thread form across production runs.
This tap enables clean, accurate UNF threads in blind holes with reduced risk of chip buildup and improved longevity. The TiCN-coated, powder-metal construction supports higher speeds and longer intervals between tool changes, helping maintain throughput and precision in demanding manufacturing environments.
| Size | 1/4 |
| Pitch | 20 |
| Overall Length | 80 |
| Threading Length | 10.2 |
| Reach | 30 |
| Shank Diameter | 7 |
| Square | 5.5 |
| Flutes | 2 |
| DIN | 2184-1 |
| Thread Direction | Right Hand |
| Substrate | Powder Metal |
| Coating | TiCN |
| Style | Spiral Flute |
| Form | UNF |
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 A-Spiral Flute - Powder Metal Right Hand -TiCN Coated - Blind Holes
View full collection →You are viewing OSG-48139472. Click any other SKU to view its full details.
| Product SKU | Size | Pitch | Overall Length | Shank Diameter | Flutes | DIN | Price | Stock | Order |
|---|---|---|---|---|---|---|---|---|---|
| OSG-48139454 | M2 | 56 | 45 | 2.8 | 2 | 2184-1 | £56.71 | In Stock | |
| OSG-48139456 | M3 | 48 | 50 | 2.8 | 2 | 2184-1 | £56.58 | In Stock | |
| OSG-48139458 | M4 | 40 | 56 | 3.5 | 2 | 2184-1 | £49.67 | In Stock | |
| OSG-48139460 | M5 | 40 | 56 | 3.5 | 2 | 2184-1 | £49.67 | In Stock | |
| OSG-48139462 | M6 | 32 | 56 | 4 | 2 | 2184-1 | £56.91 | In Stock | |
| OSG-48139465 | M8 | 32 | 63 | 4.5 | 2 | 2184-1 | £47.00 | In Stock | |
| OSG-48139467 | M10 | 24 | 70 | 6 | 2 | 2184-1 | £58.98 | In Stock | |
| OSG-48139469 | M12 | 24 | 80 | 6 | 2 | 2184-1 | £52.17 | In Stock | |
| OSG-48139472 Viewing | 1/4 | 20 | 80 | 7 | 2 | 2184-1 | £66.48 | In Stock | |
| OSG-48139476 | 5/16 | 18 | 90 | 8 | 3 | 2184-1 | £69.93 | In Stock | |
| OSG-48139481 | 3/8 | 16 | 100 | 10 | 3 | 2184-1 | £71.58 | In Stock | |
| OSG-48139486 | 7/16 | 14 | 100 | 8 | 3 | 2184-1 | £77.16 | In Stock | |
| OSG-48139491 | 1/2 | 13 | 110 | 9 | 3 | 2184-1 | £76.38 | In Stock | |
| OSG-48139496 | 9/16 | 12 | 110 | 11 | 3 | 2184-1 | £88.84 | In Stock | |
| OSG-48139504 | 5/8 | 11 | 110 | 12 | 3 | 2184-1 | £101.31 | In Stock | |
| OSG-48139517 | 3/4 | 10 | 125 | 14 | 4 | 2184-1 | £130.68 | In Stock | |
| OSG-48139528 | 7/8 | 9 | 140 | 18 | 4 | 2184-1 | £160.41 | In Stock | |
| OSG-48139539 | 1 | 8 | 160 | 48 | 4 | 2184-1 | £223.09 | In Stock |
No products match your filters.
