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OSG Threading Tap - UNF Spiral Point HSS-E - Steam Oxide Coated - Through Hole - 5/16 x 24
| Form | UNF |
| Size | 5/16 |
| Pitch | 24 |
| Flute Length | 22 |
| Shank Diameter | 8 |
| Overall Length | 72 |
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Engineered for through-hole threading, the OSG UNF Spiral Point Threading Tap (HSS-E, Steam Oxide coated) delivers precise, durable threads in demanding metalworking tasks. This 5/16-24 UNF tap is built for professionals who value accuracy and tool life in high-speed tapping operations.
- UNF Spiral Point Design: Forward-cutting geometry with a spiral point that efficiently evacuates chips, reducing snagging and improving thread quality in through-holes.
- Material: HSS-E (high-speed steel with cobalt) for superior hardness, wear resistance, and heat tolerance during prolonged tapping.
- Coating: Steam Oxide finish enhances lubricity and provides additional wear resistance, extending tool life in challenging cuts.
- Through-Hole Capability: Specifically optimized for through-hole applications, delivering consistent threads from entry to exit.
- Size & Thread: 5/16-24 UNF (5/16 diameter, 24 threads per inch), designed for tight-tolerance, fine-pinish threading tasks.
With the OSG UNF Spiral Point Tap, you gain reliable thread formation, reduced tapping time, and longer service life thanks to the cobalt-enhanced HSS-E core and resilient steam oxide coating. The combination supports steady performance in precision projects, from fixtures and assemblies to maintenance tasks, helping you complete critical jobs with confidence and fewer reworks.
| Form | UNF |
| Size | 5/16 |
| Pitch | 24 |
| Flute Length | 22 |
| Shank Diameter | 8 |
| Overall Length | 72 |
| 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-23104764. Click any other SKU to view its full details.
| Product SKU | Size | Pitch | Flute Length | Shank Diameter | Overall Length | Price | Stock | Order |
|---|---|---|---|---|---|---|---|---|
| OSG-23104674 | No. 10 | 32 | 16 | 5 | 58 | £37.89 | In Stock | |
| OSG-23104724 | 1/4 | 28 | 19 | 6.3 | 66 | £31.62 | In Stock | |
| OSG-23104764 Viewing | 5/16 | 24 | 22 | 8 | 72 | £35.80 | 1-2 days | |
| OSG-23104814 | 3/8 | 24 | 24 | 10 | 80 | £45.19 | 1-2 days | |
| OSG-23104814A | 7/16 | 20 | 25 | 8 | 85 | £54.61 | 1-2 days | |
| OSG-T9547055 | 1/2 | 20 | 29 | 9 | 89 | £65.34 | 1-2 days |
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