• How do I know if the material is cold formable and I the Thread Saver can be used?

If the thread is damaged, i.e. deformed, proof has already been provided that the material is cold formable.

  • Which materials are suitable for thread repair?

Basically all cold formable materials. When using the Thread Saver on stainless steel, it should be noted, that either the rollers are new or thoroughly cleaned before use to avoid corrosion.

  • When using the Thread Saver, is a lubricant is required?

The use of lubricants is generally recommended. In cases where no lubricant is allowed to be used(Food industry), lubricants can also be dispensed with. The results show no notable disadvantages. When using without a lubricant, the required forces increase slightly.

  • When the material is torn out, will the thread be as new after a repair?

Unfortunately, the tool is not magic. Once the material has been torn out, it is missing. The tool works with the existing material.

  • Up to what material firmness can a thread be repaired?

The threaded rollers deliver standard-compliant results up to  1850 N/mm² on the threaded shaft made of stainless steel, fixing the gear to the A350.

  • Is a thread infinitely repairable?

No. Basically, metals are malleable due to displacements and spaces in the crystal lattice. These migrate during the forming and there is a ‘reordering’ of the crystal lattice. These ‘movements’ are finite. At some point, after about 15 repairs in the same place and depending on the type of damage, the material fails (e.g. paper clip). If the damage occurs again and again in the same place, the construction should be reconsidered.

Silbertool R36 Thread Saver-in action-2