Please log in here to access all benefits, including multibuy discounts and faster checkouts.

OSG Threading Tap UNC A-Spiral Flute - Powder Metal Right Hand -TiCN Coated - Blind Holes DIN2184-1 - M5 x 40

OSG Threading Tap UNC A-Spiral Flute - Powder Metal Right Hand -TiCN Coated - Blind Holes DIN2184-1 - M5 x 40

SKU:OSG-48139459

The OSG UNC A-Spiral Flute Threading Tap is built for high-performance tapping of UNC threads in blind holes. Designed for machinists and engineers who demand precision and durability, this TiCN-c... Read more ↓
P
M
N
S
H
SizeM5
Pitch40
Overall Length56
Threading Length5.1
Reach18
Shank Diameter3.5
View all specifications ↓
Download Cutting Data
£42.63
Prices shown ex. VAT
In Stock— only 1 left
View Other Sizes →
Free delivery over £50 ex VAT
Secure checkout
14-day returns
30+ years expertise
Klarna
Pay in 3 interest-free instalments. No extra cost if paid on time. 18+ only.
Learn more about Klarna
Speak to our team
01732 887334
Mon – Thurs 8:30 – 17:30 · Fri 8:30 – 16:30

The OSG UNC A-Spiral Flute Threading Tap is built for high-performance tapping of UNC threads in blind holes. Designed for machinists and engineers who demand precision and durability, this TiCN-coated, powder-metal tap delivers clean threads and long tool life in demanding applications.

  • Thread Type: UNC (Unified National Course) with A-Spiral flute design for efficient chip evacuation in blind holes
  • Material: Powder metal construction provides enhanced strength, wear resistance, and durability under high-speed tapping
  • Coating: TiCN (titanium carbonitride) coating reduces friction and increases hardness for longer tool life and smoother cuts
  • Flute Design: A-spiral flute promotes consistent chip flow and minimizes binding in confined blind-hole environments
  • Configuration: Right-hand thread compatible with standard UNC applications and the DIN2184-1 specification
  • Size: M5 x 40 tapping size and length, suitable for small- to mid-size blind-hole projects

The combination of powder-metal substrate and TiCN coating delivers improved wear resistance, reduced risk of breakage, and extended tool life even in tougher materials and high-speed machining. The spiral flute design ensures steady chip removal, helping maintain thread quality and reducing the chance of clogging inside blind holes. Ideal for production runs and precision assemblies, this tap supports reliable, repeatable results in automotive components, machinery housings, and electronics enclosures—where clean, accurate UNC threads matter most.

Size M5
Pitch 40
Overall Length 56
Threading Length 5.1
Reach 18
Shank Diameter 3.5
Square 2.7
Flutes 2
DIN 2184-1
Thread Direction Right Hand
Substrate Powder Metal
Coating TiCN
Style Spiral Flute
Form UNC

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.

★★★★★
Nice experience staff are very helpful and interested...
Staff are very helpful and interested in providing a good service making us the customer feel valued.
Bill
★★★★★
first place we look
honest about stock and prices are competitive.
Phil
★★★★★
Polite and helpful
Staff are very helpful and polite.Goods that were in stock were dispatched same day and back orders were quick in coming through .
Graham
★★★★★
Buying experience
Phone requests are handled quickly and without any fuss. The website is easy to use and straightforward to order from. It’s especially helpful that it shows real‑time availability, so we don’t need to call to confirm whether parts will arrive.
Jeremy

Full Range: OSG Threading Taps UNC A-Spiral Flute - Powder Metal Right Hand -TiCN Coated - Blind Holes

View full collection →

You are viewing OSG-48139459. Click any other SKU to view its full details.

Product SKUSizePitchOverall LengthShank DiameterFlutesDINPriceStock Order
OSG-48139453 M256452.822184-1£48.06 In Stock
OSG-48139455 M348502.822184-1£47.90 In Stock
OSG-48139457 M440563.522184-1£42.63 In Stock
OSG-48139459 ViewingM540563.522184-1£42.63 In Stock
OSG-48139461 M63256422184-1£40.45 In Stock
OSG-48139464 M832634.522184-1£40.45 In Stock
OSG-48139466 M102470622184-1£42.63 In Stock
OSG-48139468 M122480622184-1£44.21 In Stock
OSG-48139471 1/42080722184-1£47.03 In Stock
OSG-48139474 5/161890832184-1£49.35 In Stock
OSG-48139479 3/8161001032184-1£54.40 In Stock
OSG-48139484 7/1614100832184-1£71.85 In Stock
OSG-48139489 1/213110932184-1£74.16 In Stock
OSG-48139494 9/16121101132184-1£74.29 In Stock
OSG-48139501 5/8111101232184-1£99.28 In Stock
OSG-48139515 3/4101251442184-1£122.97 In Stock
OSG-48139526 7/891401842184-1£155.76 In Stock
OSG-48139538 181604842184-1£206.63 In Stock

View Other Sizes

with tools we think you'll like