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OSG Threading Tap UNC A-Spiral Point - Powder Metal Right Hand -TiCN Coated - Through Holes DIN2184-1 - No.4 x 40
| Size | No.4 |
| Pitch | 40 |
| Overall Length | 56 |
| Threading Length | 11 |
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Description
The OSG UNC A-Spiral Point threading tap is a reliable, precision tool designed for through-hole UNC threading. Crafted for durability and consistent performance, it’s ideal for production runs and accurate prototyping where standard UNC threads are required.
- Thread Type: UNC (Unified National Coarse) A-Spiral Point, right-hand
- Hole Type: Through-Hole (DIN2184-1) compatibility for efficient tapping
- Size: No.4 x 40
- Material: Powder metal body for enhanced durability and wear resistance
- Coating: TiCN coating to improve heat resistance and extend tool life
- Chip Control: Spiral point geometry enables fast, reliable chip evacuation in through-holes
- Performance: Designed for high-speed tapping with a quality thread finish across a range of materials
This tap delivers clean, dependable threads with steady performance in everyday machining tasks. The powder metal construction and TiCN coating work together to withstand heat and wear, helping you maintain consistent results over longer runs. Ideal for applications ranging from automotive brackets to machinery housings, it supports efficient production without sacrificing precision.
Part Numbers
- Protool Part Number
- OSG-48145457
- 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 A-Spiral Point - Powder Metal Right Hand -TiCN Coated - Through Holes
View full collection →You are viewing OSG-48145457. Click any other SKU to view its full details.
| Product SKU | Size | Pitch | Overall Length | Shank Diameter | Flutes | DIN | Price | Stock | Order |
|---|---|---|---|---|---|---|---|---|---|
| OSG-48145453 | No.2 | 56 | 45 | 2.8 | 2 | 2184-1 | £39.39 | In Stock | |
| OSG-48145455 | No.3 | 48 | 50 | 2.8 | 2 | 2184-1 | £39.39 | In Stock | |
| OSG-48145457 Viewing | No.4 | 40 | 56 | 3.5 | 2 | 2184-1 | £35.09 | In Stock | |
| OSG-48145459 | No.5 | 40 | 56 | 3.5 | 3 | 2184-1 | £35.09 | In Stock | |
| OSG-48145461 | No.6 | 32 | 56 | 4 | 3 | 2184-1 | £33.30 | In Stock | |
| OSG-48145464 | No.8 | 32 | 63 | 4.5 | 3 | 2184-1 | £33.30 | In Stock | |
| OSG-48145466 | No.10 | 24 | 70 | 6 | 3 | 2184-1 | £35.09 | In Stock | |
| OSG-48145468 | No.12 | 24 | 80 | 6 | 3 | 2184-1 | £36.34 | In Stock | |
| OSG-48145471 | 1/4 | 20 | 80 | 7 | 3 | 2184-1 | £37.42 | In Stock | |
| OSG-48145474 | 5/16 | 18 | 90 | 8 | 3 | 2184-1 | £42.05 | In Stock | |
| OSG-48145479 | 3/8 | 16 | 100 | 10 | 3 | 2184-1 | £47.15 | In Stock | |
| OSG-48145484 | 7/16 | 14 | 100 | 8 | 3 | 2184-1 | £57.30 | In Stock | |
| OSG-48145489 | 1/2 | 13 | 110 | 9 | 3 | 2184-1 | £62.79 | In Stock | |
| OSG-48145494 | 9/16 | 12 | 110 | 11 | 3 | 2184-1 | £70.20 | In Stock | |
| OSG-48145501 | 5/8 | 11 | 110 | 12 | 3 | 2184-1 | £77.16 | In Stock | |
| OSG-48145515 | 3/4 | 10 | 125 | 14 | 3 | 2184-1 | £104.33 | In Stock | |
| OSG-48145526 | 7/8 | 9 | 140 | 18 | 3 | 2184-1 | £126.57 | In Stock | |
| OSG-48145538 | 1 | 8 | 160 | 18 | 3 | 2184-1 | £165.64 | In Stock |
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