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Article no.: 137857 4-40
Machine tap, TiN, UNC: 4-40
Article no.: 137865 4-40
Article code:
- Thread type: UNC
- Flank angle: 60
- Tool material: HSS E
- Standard: DIN 371
- Tolerance class: 2B
Product details
Technical Data
| Thread size | 4-40 UNC | |
| Coating | TiN | |
| Thread type | UNC | |
| Flank angle | 60 degrees | |
| Tool material | HSS E | |
| Standard | DIN 371 | |
| Tolerance class | 2B | |
| Taper lead form | C | |
| Helix angle | 20 degrees | |
| Shank | Plain shank with h9 | |
| Through-coolant | no | |
| Application for type of drilling | up to 2×D for blind holes | |
| Cutting direction | right-hand | |
| Thread pitch | 0.635 mm | |
| Threads per inch | 40 | |
| Thread ⌀ | 2.85 mm | |
| Overall length L | 56 mm | |
| Shank ⌀ Ds | 3.5 mm | |
| Shank square □ | 2.7 mm | |
| Tapping hole ⌀ | 2.35 mm | |
| Type of threading tool | Machine tap for dynamic machining | |
| Number of clamping slots | 3 | |
| Colour ring | blue | |
| Number of cutting edges Z | 3 | |
| Thread depth | 5.7 mm | |
| Type of product | Tap |
Identification numbers & Classifications
| Article number | 137865 4-40 | |
| EAN / GTIN | 4045197533104 | |
| Manufacturer number | 137865 4-40 |
Application Table
N
13
P
15
P
15
M
10
M
8
Description
Version:
Sturdy design, with 20° right-hand chip flutes. With special TiN coating, for stainless and acid-resistant steels. For use with emulsion (fat content minimum 8%).
Application:
For UNC uniform coarse threads ASME − B1.1.