b&m-TRIMNUT®

Thread-forming nut

The b&m-TRIMNUT® turns the thread forming principle upside down. Not the screw, but the nut is the fastener and simultaneously a thread-forming tool. Designed to remove welding spatters on welding pins or plating residue, the b&m-TRIMNUT® is also able to form a thread in conjunction with a pin geometry designed for this purpose. The b&m-TRIMNUT® enables the removal of impact points by local reshaping of the damaged thread, as well as the removal of rust and the heaviest soiling. The functional principle works for screwing and unscrewing and ensures safe assembly / disassembly without destructive separation of the connection.

  • Diameter: M5 – M22
  • Height: similar to DIN 1661
  • Property class: similar to 10 according to DIN EN ISO 898-2
  • Flank angle: 60°
  • Thread pitch: metric according to DIN 13 / fine thread or inch thread available
  • Flange: geometry according to DIN 1661 / customer specific solutions available
  • Coating: according to specification (integrated or additionally applied lubricant according to application)
  • Fastener and thread-forming tool
  • Removes impact marks, rust and heavy soiling due to local deformation of damaged thread turns
  • The functional principle works for screwing and unscrewing and ensures safe assembly / disassembly without destructive separation of the connection
  • Mounting on KTL coated and hot-dip galvanized threaded bolts
  • Applying threads to bare bolts
  • Repair solution for damaged bolt threads
  • Battery holder: b&m-TRIMNUT® restores damaged threads.
  • Seat frame: b&m-TRIMNUT® connects centered components with "bare" bolts.