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Description
Technical data for the M7 left-hand die
| Technical data | |
|---|---|
| Thread to Be Cut d1 | M7 |
| Thread Pitch P | 1 mm |
| Outside Diameter d2 | 25 mm |
| Thickness h1 | 9 mm |
| Number of Chip Holes | 4 |
| Required Shaft Diameter | 6.88 mm |
M7 left-hand HSS die – a specialized tool for less common reverse threads
The M7 left-hand die is a professional external threading tool for cutting threads left-hand with a diameter of 7 mm and a pitch of 1.0 mm. The robust construction measuring 25 x 9 mm ensures stable operation on components requiring a nonstandard thread size, while high-speed steel (HSS) ensures reliability and long cutting edge life.
Key features of the M7 left-hand die for specialized applications
- M7 left-hand thread (LH) enables the production of joints resistant to self-loosening in rotary mechanisms and systems exposed to vibration
- Nonstandard diameter of 7 mm fills the gap between the common M6 and M8 sizes, making it ideal for specialized designs
- Dimensions of 25 x 9 mm provide optimum rigidity and comfortable tool guidance during threading
- HSS steel for strengths up to 800 MPa allows machining of carbon steels, alloy steels, aluminum, and brass
- Compliance with DIN 22 568 ensures 6g tolerance and interchangeability with M7 left-hand nuts
The M7 left-hand die is used to manufacture special-purpose machine components, scientific instrument components, spare parts for imported equipment, and reverse-threaded joints in precision mechanics. This threading tool is essential wherever standard sizes do not meet design requirements. Add a rare size to your workshop – order a die that solves the problem of a nonstandard M7 left-hand thread.
Frequently asked questions
The M7 size belongs to the less common series of metric threads. It is primarily used in specialized machinery, foreign-made equipment, and designs where typical diameters do not provide the required mechanical properties.
The threading process is the same as with other sizes. The only difference is the direction of rotation – the tool turns counterclockwise. Lubrication and chip removal procedures remain unchanged.
No, the outside dimension of 25 mm fits standard workshop die stocks designed for this size. Standard accessories are fully sufficient.
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Shipping
All orders are delivered by courier company GLS. For orders exceeding 369 PLN gross shipping is FREE
| Courier GLS | Przelew24 / Prepayment | 14,76 zł gross | Delivery time 1 working day |
| Courier GLS | Cash on delivery | 17,26 zł gross | Lead time 1 working day |
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