Lemo M-Series Screw Coupling / Threaded Circular Connectors for Motorsport and Military applications

The LEMO M series are compact and lightweight connectors with a triple start ratchet coupling mechanism designed for high-performance applications such as motorsport, defence, avionics, and security. Having many similar features of the larger MIL-DTL-38999 series of connectors, the high-reliability LEMO M series is much smaller in size for the same number of contacts while still providing a wide range of shell styles, 360 degree shielding and high performance materials and plating options.


  • Multipole 2 to 114 contacts, including mixed layouts
  • Fibre optic contacts and USB interface options
  • Compact and lightweight
  • Secure ratchet coupling mechanism
  • 12 shell styles
  • 6 keying options
  • IP68 when mated (2m, 15hrs)
  • Waterproof when unmated options
  • High levels of corrosion resistance
  • Oil and fuel resistant
  • Temp. range -50°C to 200°C
  • 360 degree shielded
  • Integral or threaded backshells
  • Crimp or PCB contacts
  • High shock and vibration resistance (gunfire test)
  • Dark finish

Lemo M Series Connectors Catalogue

Related Products