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OSG Threading Tap - BSPT Spiral Point HSS-E - Steam Oxide Coated - Through Hole - 3/8 x 19
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Description
Achieve clean, precise BSPT internal threads with the OSG BSPT Spiral Point Threading Tap. Designed for through-hole tapping in metalworking environments, it combines high-speed steel with cobalt (HSS-E) and a durable Steam Oxide finish for reliable, long-lasting performance.
- Material: HSS-E (high-speed steel with cobalt) for enhanced hardness and wear resistance.
- Coating: Steam Oxide coating to improve heat tolerance and surface durability.
- Thread type: BSPT (British Standard Pipe Taper) threading for accurate tapered internal threads.
- Tip/geometry: Spiral Point design supports efficient chip evacuation in through-hole tapping.
- Through-hole design: Specifically optimized for tapping through-hole environments to maintain thread quality.
- Size: 3/8 in. diameter x 19 TPI (BSPT) for precise, compatible threading.
This tap delivers repeatable, high-quality BSPT threads essential for plumbing, hydraulic, and pneumatic assemblies, as well as other applications requiring reliable through-hole threading. The combination of HSS-E with Steam Oxide coating minimizes wear, extends tool life, and helps maintain consistent thread profiles across multiple holes. Use with appropriate lubrication and steady feed to maximize performance and achieve consistent fit with BSP fittings.
Part Numbers
- Protool Part Number
- OSG-22608404
- 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 - BSPT Spiral Point HSS-E - Steam Oxide Coated - Through Hole
View full collection →You are viewing OSG-22608404. Click any other SKU to view its full details.
| Product SKU | Size | Pitch | Flute Length | Shank Diameter | Overall Length | Price | Stock | Order |
|---|---|---|---|---|---|---|---|---|
| OSG-22608384 | 1/8 | 28 | 15 | 8 | 59 | £69.52 | In Stock | |
| OSG-22608394 | 1/4 | 19 | 19 | 10 | 67 | £95.62 | In Stock | |
| OSG-22608404 Viewing | 3/8 | 19 | 21 | 12.5 | 75 | £112.98 | In Stock | |
| OSG-22608414 | 1/2 | 14 | 26 | 16 | 87 | £139.05 | In Stock | |
| OSG-22608434 | 3/4 | 14 | 28 | 20 | 96 | £201.63 | In Stock | |
| OSG-22608454 | 1 | 11 | 33 | 25 | 109 | £272.89 | 1-2 days |
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