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OSG Threading Tap UNF A-Spiral Point - Powder Metal Right Hand -TiCN Coated - Through Holes DIN2184-1 - 5/16 x 18
| Size | 5/16 |
| Pitch | 18 |
| Overall Length | 90 |
| Threading Length | 22 |
| Reach | 35 |
| Shank Diameter | 8 |
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The OSG Threading Tap UNF A-Spiral Point is a precision tapping tool designed for through-hole UNF threading. Built for machines and shops that demand clean, accurate threads, it combines durable powder-metal construction with a high-performance TiCN coating for long tool life.
- UNF 5/16-18: Unified National Fine thread size (5/16-18) ideal for fine-thread through-holes.
- A-Spiral Point: Spiral-point geometry guides chips forward for efficient through-hole tapping and reduced clogging.
- Powder Metal: Robust substrate offering wear resistance and toughness under demanding cutting conditions.
- TiCN Coated: Titanium carbonitride coating lowers friction, improves heat resistance, and extends cutting life.
- Right-Hand: Standard right-hand threading suitable for conventional machining setups and assemblies.
- Through Holes: Optimized for through-hole applications to ensure consistent thread quality from entry to exit.
- DIN2184-1: Compliance with DIN2184-1 standard supports compatibility with common holders and CNC workflows.
With this tap, you can achieve precise, burr-free UNF threads in a range of base materials, from aluminum to tougher steels, while minimizing tool wear. The A-Spiral Point accelerates production by pushing chips ahead of the cutting edge and reducing manual deburring. The TiCN coating helps maintain sharpness longer, reducing downtime for tool changes and increasing overall productivity. This tap is ideal for automotive, electronics housings, and general precision manufacturing where consistent thread quality and reliable hole threading matter.
| Size | 5/16 |
| Pitch | 18 |
| Overall Length | 90 |
| Threading Length | 22 |
| Reach | 35 |
| Shank Diameter | 8 |
| Square | 6.2 |
| Flutes | 3 |
| DIN | 2184-1 |
| Thread Direction | Right Hand |
| Substrate | Powder Metal |
| Coating | TiCN |
| Style | Spiral Point |
| 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 Point - Powder Metal Right Hand -TiCN Coated - Through Holes
View full collection →You are viewing OSG-48145476. Click any other SKU to view its full details.
| Product SKU | Size | Pitch | Overall Length | Shank Diameter | Flutes | DIN | Price | Stock | Order |
|---|---|---|---|---|---|---|---|---|---|
| OSG-48145454 | No.2 | 56 | 45 | 2.8 | 2 | 2184-1 | £46.59 | In Stock | |
| OSG-48145456 | No.3 | 48 | 50 | 2.8 | 2 | 2184-1 | £46.46 | In Stock | |
| OSG-48145458 | No.4 | 40 | 56 | 3.5 | 2 | 2184-1 | £40.72 | In Stock | |
| OSG-48145460 | No.5 | 40 | 56 | 3.5 | 3 | 2184-1 | £40.72 | In Stock | |
| OSG-48145462 | No.6 | 32 | 56 | 4 | 3 | 2184-1 | £46.47 | In Stock | |
| OSG-48145465 | No.8 | 32 | 63 | 4.5 | 3 | 2184-1 | £38.59 | In Stock | |
| OSG-48145467 | No.10 | 24 | 70 | 6 | 3 | 2184-1 | £47.30 | In Stock | |
| OSG-48145469 | No.12 | 24 | 80 | 6 | 3 | 2184-1 | £42.86 | In Stock | |
| OSG-48145472 | 1/4 | 20 | 80 | 7 | 3 | 2184-1 | £51.41 | In Stock | |
| OSG-48145476 Viewing | 5/16 | 18 | 90 | 8 | 3 | 2184-1 | £54.97 | In Stock | |
| OSG-48145481 | 3/8 | 16 | 90 | 10 | 3 | 2184-1 | £59.51 | In Stock | |
| OSG-48145486 | 7/16 | 14 | 100 | 8 | 3 | 2184-1 | £74.99 | In Stock | |
| OSG-48145491 | 1/2 | 13 | 100 | 9 | 3 | 2184-1 | £71.16 | In Stock | |
| OSG-48145496 | 9/16 | 12 | 100 | 11 | 3 | 2184-1 | £84.15 | In Stock | |
| OSG-48145504 | 5/8 | 11 | 100 | 12 | 3 | 2184-1 | £97.33 | In Stock | |
| OSG-48145517 | 3/4 | 10 | 110 | 14 | 3 | 2184-1 | £125.20 | In Stock | |
| OSG-48145528 | 7/8 | 9 | 125 | 18 | 3 | 2184-1 | £158.36 | In Stock | |
| OSG-48145539 | 1 | 8 | 140 | 18 | 3 | 2184-1 | £210.05 | In Stock |
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