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Description
Technical data for the M12 left-hand die
| Technical Data | |
|---|---|
| Thread size D1 | M12 |
| Thread Pitch P | 1.75 mm |
| Outside Diameter D2 | 38 mm |
| Thickness H1 | 14 mm |
| Number of Chip Holes | 4 |
| Required Shaft Diameter | 11.83 mm |
M12 LH HSS die DIN 22 568 – left-hand threading in a standard size
The M12 LH die is a professional tool for producing external left-hand threads on shafts and rods with a diameter of 12 mm. Made of high-speed steel (HSS) in accordance with DIN 22568, the M12 left-hand metric die combines a common size with a reverse thread direction for use in safety mechanisms, rotating machinery, and industrial equipment requiring protection against self-loosening, with a tolerance of 6g.
Advantages of the M12 LH HSS die
- Standard size M12 ensures better availability of left-hand nuts than nonstandard sizes
- The left-hand profile secures connections in equipment rotating counterclockwise
- HSS material ensures long service life with regular workshop use
- Standard pitch of 1.75 mm in accordance with ISO standards for metric threads
- Proven in industrial toolrooms and specialized machinery maintenance departments
Mechanics servicing production lines and technicians in industrial plants use the M12 LH threading die when assembling and repairing equipment with rotating components. Recommended for workshops servicing the woodworking industry, packaging machinery, and transport equipment with anti-rotation safeguards. Choose a tool that combines the versatility of the M12 size with the security of a left-hand thread in your technical applications.
Frequently asked questions
An M12 LH thread with a pitch of 1.75 mm requires a rod diameter of 11.85-11.90 mm. Material preparation is identical to that for a right-hand thread - the only difference is the direction in which the profile is cut. The rod surface must be cylindrical and free of burrs and rust. Make a lead-in chamfer over a length of 2-3 mm at an angle of 45° to make it easier to position the left-hand die and start threading without damaging the initial threads.
The M12 LH thread is used on the left side of the spindle in angle grinders and polishing machines, in circular saws with reverse rotation, in industrial mixers rotating counterclockwise, and in reduction gearboxes with left-hand rotation. It is also used in packaging machines with winding shafts and textile equipment with reels rotating counterclockwise.
The most effective method is to permanently mark the die stock holding the LH die with red tape or paint and a label reading LEFT or LH. During operation, consciously remind yourself of the reverse direction - turn counterclockwise instead of clockwise. Making a few trial turns without pressure helps you get used to the unfamiliar motion. Experienced mechanics recommend keeping the LH die in a separate compartment away from standard tools.
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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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