Petzl M37 SL Omni Lock Carabiner

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M37 SL
Frequently bought together:


Multi-directional semi-circle carabiner

Multi-directional semi-circle OMNI carabiner for fastening the FALCON ASCENT harnesses and for attaching a CROLL ventral rope clamp. It is available in two locking systems: automatic TRIACT-LOCK system or manual SCREW-LOCK system.


  • Multi-directional carabiner to:
    - fasten the FALCON ASCENT harness by joining the two attachment points
    - connect a CROLL ventral rope clamp (FALCON ASCENT)
  • Strength: 15 kN (in all directions)
  • Keylock system helps prevent the carabiner snagging during maneuvers
  • Red indicator provides a visual warning when the carabiner is unlocked (on SCREW-LOCK version)
  • Two locking systems available:
    - TRIACT-LOCK: automatic locking with triple-action gate opening
    - SCREW-LOCK: the manual screw-lock with red band provides a visual warning when the carabiner is unlocked
  • Also available in black


  • Material(s): aluminum
  • Certification(s): CE EN 362

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Warranty Information

3 year manufacturer
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Additional Information

Gate Opening:
22 mm
Major Axis Strength:
Gate Open Strength:
Minor Axis Strength:
86 grams
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1 Review

  • 5
    This is the best option for the Frog

    Posted by Anmar Mirza on 7th Jun 2017

    Half-moon maillons both aluminum and stainless steel have a tendency to become racked over time and can be difficult (and some times impossible) to open. I have had students have new aluminum ones weld itself closed so hard it could not be opened with it clamped in a vise and using a wrench. The Omni-Lock is an excellent solution to this issue. I prefer the manual lock over the auto-lock as much of my caving is in pretty bad mud and the auto-lock can become jammed, but I recommend the auto-lock for new cavers until they become proficient enough to be able to make their own decision.

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