(TB904) HSS-E (M35) UNC Spiral Flute for Stainless Steel
HSS-E VAP UNC spiral flute taps for blind holes
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- SKU
- TB904322
Key features
- HSS-E UNC spiral flute machine taps
- VAP surface treatment specified for the TB904 series
- Special flute geometry for blind-hole chip evacuation
Made in South Korea
Blind-hole chip evacuation
Special flute geometry supports effective chip evacuation when tapping blind holes.
Stainless steel application
Part of the YG TAP INOX range for stainless steels with higher cutting forces.
Practical UNC coverage
The supplied selection covers coarse UNC sizes from #5-40 through 1-8.
| 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| TB904322 | #10 | 24UNC | 10.0 | 70.0 | 25.0 | 6.0 | 4.9 | 8.0 | 3 | 3.9 | – | 1-2 Weeks | $23.00 | ||
| TB904202 | #5 | 40UNC | 7.0 | 56.0 | 18.0 | 3.5 | 2.7 | 6.0 | 3 | 2.6 | STEPDXF | 1-2 Weeks | $22.30 | ||
| TB904402 | 1/4 | 20UNC | 13.0 | 80.0 | 30.0 | 7.0 | 5.5 | 8.0 | 3 | 5.2 | – | Low stock | $30.60 | ||
| TB904442 | 5/16 | 18UNC | 14.0 | 90.0 | 35.0 | 8.0 | 6.2 | 9.0 | 3 | 6.6 | – | Low stock | $36.70 | ||
| TB904482 | 3/8 | 16UNC | 16.0 | 100.0 | 39.0 | 9.0 | 7.0 | 10.0 | 3 | 8.0 | – | In stock | $44.10 | ||
| TB904522 | 7/16 | 14UNC | 17.0 | 100.0 | 40.0 | 8.0 | 6.2 | 9.0 | 3 | 9.4 | – | In stock | $62.40 | ||
| TB904642 | 5/8 | 11UNC | 22.0 | 110.0 | 44.0 | 12.0 | 9.0 | 12.0 | 3 | 13.5 | – | In stock | $94.80 | ||
| TB904702 | 3/4 | 10UNC | 25.0 | 125.0 | 50.0 | 14.0 | 11.0 | 14.0 | 4 | 16.5 | – | In stock | $115.10 | ||
| TB904782 | 1 | 8UNC | 30.0 | 160.0 | 60.0 | 20.0 | 16.0 | 16.0 | 4 | 22.25 | – | Low stock | $189.20 |
Add (TB904) HSS-E (M35) UNC Spiral Flute for Stainless Steel to comparison
View Comparison- Overview
- Specifications
- Work Material
- Reviews
YG-1 TB904 UNC spiral flute machine taps are HSS-E tools with VAP treatment for blind holes. They create UNC internal threads in stainless steel while directing chips away through special flute geometry. The supplied range runs from #5-40 UNC to 1-8 UNC for coarse-thread machining. DIN 371 dimensions cover #5 through 3/8, while DIN 376 covers 7/16 and larger sizes. Overall lengths extend from 56 mm to 160 mm within the selected sizes. Three flutes apply through 5/8 UNC, while 3/4 and 1 UNC taps have four. This tap family is part of YG-1's YG TAP INOX stainless-steel range. It provides a defined UNC option for threaded stainless steel parts requiring a machine-tap format.
- HSS-E UNC spiral flute machine taps
- VAP surface treatment specified for the TB904 series
- Special flute geometry for blind-hole chip evacuation
- Designed within the YG TAP INOX stainless-steel range
- UNC sizes from #5-40 to 1-8
- DIN 371 and DIN 376 dimensional formats
| Tool Material | HSS-E |
Work materials
VDI 3323 recommendations for this tool.
Steel
5 gradesSuperalloys & titanium
2 gradesStainless steel
3 gradesVDI grade reference10 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 | Excellent | 125 | - |
| 2 | PNon-alloy steel | Excellent | 190 | 13 |
| 3 | PNon-alloy steel | Good | 250 | 25 |
| 4 | PNon-alloy steel | Good | 270 | 28 |
| 6 | PLow-alloy steel | Good | 180 | 10 |
| 12 | MStainless steel | Excellent | 200 | 15 |
| 13 | MStainless steel | Excellent | 240 | 23 |
| 14 | MStainless steel | Excellent | 180 | 10 |
| 31 | SHeat-resistant superalloys | Good | 200 | 15 |
| 36 | STitanium alloys | Good | - | - |
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.
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