(TB904) HSS-E (M35) UNC Spiral Flute for Stainless Steel
Blind-Hole UNC Spiral Tap for Stainless SteelCode: TB904162
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Key Features
- HSS-E (M35) with 5% cobalt for durability and heat resistance
- VAP surface finish minimises friction and galling
- Spiral flute geometry ideal for blind hole tapping
Made in South Korea
If you're not 100% happy with your purchase, we'll replace or refund.
| 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) | Stock | Price | Qty | Add |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| TB904162 | #4 | 40UNC | 6.0 | 56.0 | 18.0 | 3.5 | 2.7 | 6.0 | 3 | 2.3 | 5 days | - | ||
| TB904202 | #5 | 40UNC | 7.0 | 56.0 | 18.0 | 3.5 | 2.7 | 6.0 | 3 | 2.6 | 5 days | $22.30 | ||
| TB904242 | #6 | 32UNC | 7.0 | 56.0 | 20.0 | 4.0 | 3.0 | 6.0 | 3 | 2.85 | 5 days | - | ||
| TB904322 | #10 | 24UNC | 10.0 | 70.0 | 25.0 | 6.0 | 4.9 | 8.0 | 3 | 3.9 | 5 days | $23.00 | ||
| TB904402 | 1/4 | 20UNC | 13.0 | 80.0 | 30.0 | 7.0 | 5.5 | 8.0 | 3 | 5.2 | In stock | $30.60 | ||
| TB904442 | 5/16 | 18UNC | 14.0 | 90.0 | 35.0 | 8.0 | 6.2 | 9.0 | 3 | 6.6 | In 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 |
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- Specifications
- Operation
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Product Description
The YG-1 TB904 Series 1/2 x 13TPI UNC Spiral Flute Tap delivers high performance in stainless steel and other tough alloys. Constructed from HSS-E (M35) with 5% cobalt, it offers exceptional heat resistance and durability. The VAP surface treatment reduces friction, while the spiral flute geometry ensures smooth chip evacuation in blind holes, preventing overfeeding and early wear.
- HSS-E (M35) with 5% cobalt for durability and heat resistance
- VAP surface finish minimises friction and galling
- Spiral flute geometry ideal for blind hole tapping
- Designed for stainless steel, titanium, and nickel alloys
- Patented design prevents overfeeding and tap failure
Product Data
| Workpiece Material | P M |
| Helix Angle | Square 40 |
| Operation | Blind Drilling |
| Surface Treatment | Steam Oxide Coating |
| Thread Angle | 60 |
| Thread Class | 2B |
| Thread Form | C |
| Thread Shape | UNC |
| Tool Material | HSS-E |
| Tool Standard | DIN 371-376 |
Blind Drilling
Carbon Steels
Great
Good
Great
Excellent
Structural Steels
Great
Good
Great
Excellent
Mild & Free Machining
Great
Good
Great
Excellent
Stainless Steels
Excellent
Good
Great
Excellent
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