The VÖLKEL Machine Nut Tap DIN 357 is your go-to tool for serial nut tapping and precision through threads. Designed with a long reduced shank, this tap allows multiple finished nuts to slide over after threading – ensuring efficient, continuous operation in production or workshop use.
Made from high-performance HSSE steel, it combines toughness and wear resistance for cutting unalloyed and low-alloy steels up to 800 N/mm². Whether you’re working in confined spaces or processing batches of nuts, this tap offers consistent results, excellent chip evacuation, and long tool life.
| Thread type | Metric ISO thread DIN 13 |
| Standard | DIN 357 |
| Material | HSSE |
| Tolerance | ISO 2 / 6H |
| Nominal size | M 4 × 0.7 |
| Overall length (L1) | 90 mm |
| Thread length (L2) | 25 mm |
| Shank diameter (D2) | 2.8 mm |
| Square drive | 2.1 mm |
| EAN | 4022835371304 |
| Article number | 37130 |
What makes a machine nut tap special?
Its long reduced shank design allows serial nut tapping – ideal for continuous production and efficient workflow.
What does DIN 357 define?
It defines geometry, dimensions, and tolerances of nut taps used for through threads, ensuring interchangeability and process reliability.
What materials can it cut?
Best suited for non-abrasive materials and steels up to 800 N/mm². Avoid using on hardened steels.
Can I use it manually?
Yes, with a suitable hand tap wrench or a 2.1 mm square drive collet. For precision or volume work, a machine setup is recommended.
Why choose HSSE material?
HSSE offers superior toughness and wear resistance compared to HSS, ensuring long tool life and consistent performance.
Learn more about DIN 357 machine nut taps and compatible tooling – contact us via the contact form.
| Type of thread | metric ISO-thread |
|---|---|
| Standard | DIN 357 |
| Material | HSSE |
| Tolerance | ISO2 (6H) |
| Size | M 4 x 0.7 |
| Overall length (L1) | 90 mm |
| Thread length (L2) | 25 mm |
| Core hole diameter (D1) | 3.3 mm |
| Shank diameter (D2) | 2.8 mm |
| Drive connector | 2.1 mm |
| EAN | 4022835371304 |
| Item number | 37130 |
| Type of flute | straight fluted |
| Application | for through holes |
| Thread standard | DIN 13 |
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