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ERM Locknut for Electrical Bolting

Product Announcement from J.Lanfranco Fastener Systems Inc.


ERM Locknut for Electrical Bolting-Image

Lanfranco's ERM locknut is the ideal solution for electrical bolting that is subjected to:

  • Alternating currents
  • Thermal Cycling
  • Extreme Temperatures
  • Chemical Agents
  • Preservation of male part (ie Terminal Stud, elimination of GALLING)
  • Consistent contact

The ERM is an all metal slotted locking nut which has an integrated disc spring washer. The locking collar on the turret portion of the nut ensures the assembly will not loosen while the washer provides an excellent electrical contact and helps maintain preload under the most severe conditions. The washer is available in 3 different OD's which ensures that the ERM can be tailored to your application.

To learn more, visit our FAQ page.

Currently, the ERM is being used in many electrical bolting applications:

  • Circuit Breakers
  • Relays
  • Transformers
  • Overhead Electrification
  • Busbars
  • Battery Chargers

Each nut is stamped with material property class and is fully traceable. Available in Inch & Metric in steel Gr.5-10 and stainless steel 304/316L. Additional materials and finishes available upon request. Request Samples for testing today!