Walter-Prototyp - 1/4-28 UNF, 3 Flutes, Plug Chamfer, Oxide Finish, Cobalt Spiral Point STI Tap - 0.315" Shank Diam, 0.2441" Square Size, 3B Class of Fit, Series M233009
Item #: 36329258
Brand: Walter-Prototyp
Model #: 6150000
Exact Tooling IR#: 04
Features and Benefits
Plug chamfers are the most commonly used chamfer and are designed for efficiently threading through and blind holes. They have 3 to 5 threads.
Oxide, also known as black oxide or steam oxide, is a surface treatment that prevents chip building, galling and welding on the workpiece. It is commonly used on low carbons, stainless steel and ferrous metals.
| Product Specifications | |
|---|---|
| Thread Size (Inch) | 1/4-28 |
| Class of Fit | 3B |
| Number of Flutes | 3 |
| Chamfer | Plug |
| Finish/Coating | Oxide |
| Overall Length (Decimal Inch) | 3.5433 |
| Thread Standard | UNF |
| Material | Cobalt |
| Thread Length (Decimal Inch) | 0.7087 |
| Shank Diameter (Decimal Inch) | 0.3150 |
| Square Length (mm) | 9.00 |
| Square Size (Decimal Inch) | 0.2441 |
| Square Size (mm) | 6.20 |
| Series/List | M233009 |
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