(TC124) HSS-E (M35) UNF Spiral Flute Tap for General Purpose
Bright HSS-E UNF spiral flute tap for blind holes
- SKU
- TC124222
Key features
- Bright HSS-E machine tap construction
- 40-degree spiral flute supports blind-hole chip evacuation
- C chamfer lead with 2B thread class
Made in South Korea
Blind-hole capability
Special flute geometry is designed to evacuate chips effectively in blind-hole tapping.
UNF thread range
Covers practical Unified Fine thread sizes from #5–44 through 7/8–14.
Standardised tap design
DIN 371 and DIN 374 formats provide a defined machine-tap configuration.
| SKU | Size | TPI | Thread length (mm) | Overall length (mm) | Neck length (mm) | Shank dia. (mm) | Square size (mm) | Square length (mm) | Flutes | Tapping drill dia. (mm) | CAD files | Stock | Price | Qty | Add |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| TC124222 | #5 | 44UNF | 7.0 | 56.0 | 18.0 | 3.5 | 2.7 | 6.0 | 3 | 2.7 | DXF | 1-2 Weeks | $45.30 | ||
| TC124422 | 1/4 | 28UNF | 10.0 | 80.0 | 30.0 | 7.0 | 5.5 | 8.0 | 3 | 5.5 | DXF | In stock | $32.60 | ||
| TC124462 | 5/16 | 24UNF | 10.0 | 90.0 | 35.0 | 8.0 | 6.2 | 9.0 | 3 | 6.9 | – | Low stock | $39.00 | ||
| TC124502 | 3/8 | 24UNF | 10.0 | 100.0 | 39.0 | 9.0 | 7.0 | 10.0 | 3 | 8.5 | – | In stock | $41.70 | ||
| TC124542 | 7/16 | 20UNF | 13.0 | 100.0 | 40.0 | 8.0 | 6.2 | 9.0 | 3 | 9.9 | – | In stock | $58.00 | ||
| TC124582 | 1/2 | 20UNF | 13.0 | 100.0 | 40.0 | 9.0 | 7.0 | 10.0 | 3 | 11.5 | – | In stock | $58.00 | ||
| TC124622 | 9/16 | 18UNF | 15.0 | 100.0 | 40.0 | 11.0 | 9.0 | 12.0 | 3 | 12.9 | – | In stock | $57.00 | ||
| TC124662 | 5/8 | 18UNF | 15.0 | 100.0 | 40.0 | 12.0 | 9.0 | 12.0 | 3 | 14.5 | – | In stock | $79.20 | ||
| TC124722 | 3/4 | 16UNF | 17.0 | 110.0 | 44.0 | 14.0 | 11.0 | 14.0 | 4 | 17.5 | – | In stock | $104.30 | ||
| TC124762 | 7/8 | 14UNF | 17.0 | 125.0 | 50.0 | 18.0 | 14.5 | 17.0 | 4 | 20.5 | – | Low stock | $151.90 |
Add (TC124) HSS-E (M35) UNF Spiral Flute Tap for General Purpose to comparison
View Comparison- Overview
- Specifications
- Work Material
- Reviews
YG-1 TC124 UNF spiral flute machine taps are bright HSS-E tools designed for blind holes. Special flute geometry promotes chip evacuation when producing Unified Fine threads in suitable workpieces. These general-purpose taps use a 40-degree spiral flute and C chamfer lead. Bright-finish TC124 taps have a 60-degree thread angle and 2B thread class. The range covers #5–44 UNF through 7/8–14 UNF thread sizes. Smaller sizes through 3/8 follow DIN 371, while larger sizes follow DIN 374. Four-flute construction is specified for 3/4 and 7/8 sizes within this TC124 family. Select the required TC124 size for blind-hole threading with effective chip clearance.
- Bright HSS-E machine tap construction
- 40-degree spiral flute supports blind-hole chip evacuation
- C chamfer lead with 2B thread class
- 60-degree UNF thread form
- DIN 371 and DIN 374 tool standards
- UNF sizes from #5–44 to 7/8–14
| Surface Treatment | Bright |
| Tool Material | HSS-E |
Work materials
VDI 3323 recommendations for this tool.
Steel
8 gradesCast iron
2 gradesStainless steel
2 gradesNon-ferrous materials
6 gradesVDI grade reference18 grades
Individual grade ratings and nominal hardness references. Base grades and decimal subgrades are listed separately.
| VDI | Work material | Recommendation | HB ref. | HRC ref. |
|---|---|---|---|---|
| 1 | PNon-alloy steel | Good | 125 | - |
| 2 | PNon-alloy steel | Excellent | 190 | 13 |
| 3 | PNon-alloy steel | Excellent | 250 | 25 |
| 4 | PNon-alloy steel | Excellent | 270 | 28 |
| 5 | PNon-alloy steel | Good | 300 | 32 |
| 6 | PLow-alloy steel | Excellent | 180 | 10 |
| 7 | PLow-alloy steel | Excellent | 275 | 29 |
| 8 | PLow-alloy steel | Good | 300 | 32 |
| 12 | MStainless steel | Good | 200 | 15 |
| 13 | MStainless steel | Good | 240 | 23 |
| 17 | KNodular cast iron | Excellent | 160 | 3 |
| 18 | KNodular cast iron | Excellent | 250 | 25 |
| 21 | NWrought aluminium | Good | 60 | - |
| 23 | NCast aluminium | Good | 75 | - |
| 24 | NCast aluminium | Good | 90 | - |
| 25 | NCast aluminium | Excellent | 130 | - |
| 26 | NCopper, bronze and brass | Good | 110 | - |
| 28 | NCopper, bronze and brass | Excellent | 100 | - |
No grades match your search.
HB and HRC values are nominal catalogue references. Grade subdivisions can vary between catalogues.
Recommendations apply to the listed VDI grades. Unlisted grades have no stated recommendation.
You Might Also Like
Service & Delivery
How do I purchase my items?
Excision products are available through 300+ local distributors around Australia. Some products may also have buy online options available for online purchase through our distributors.
Find your local distributorWhat delivery services do we offer?
We freight out of Melbourne every day for 1-3 days delivery to your local distributor. We also offer upon request (for an extra charge):
- Send direct
- Air frieght for small urgent items
How do I return an item?
We offer lifetime returns. If you’re unhappy with your purchase, you can return unused items to us for free – no questions asked.
Have a question about this product?
Contact Sales
+61 (03) 5551 4555
Mon - Fri 7am - 5pm