Sm’D – Ultra-light asymmetric carabiner

The compact Sm’D asymmetrical aluminum carabiner is recommended for workers at height looking to reduce weight to a minimum. D shape makes it especially suitable for attaching devices. It is available in two locking systems (automatic TRIACT-LOCK system or manual SCREW-LOCK system), or without a locking system.

SKU: M39A Category:


  • D shape is especially suitable for attaching devices
  • Compact aluminum carabiner, for workers at height looking to reduce weight to a minimum
  • Easier handling:
    – fluid interior design limits the risk of having a catch point and facilitates rotation of the carabiner
    – Keylock system to avoid any involuntary snagging of the carabiner
  • H-shaped cross-section:
    – ensures an improved strength-to-weight ratio
    – protects markings from abrasion
  • Hole for connecting TIBLOC or MICRO TRAXION type devices, limiting the risk of losing them
  • 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
  • Available without locking system, for easy clipping during progression using climbing techniques


  • Material(s): aluminum
Weight N/A

Manufacturer guarantee

3 Years

Locking system

TRIACT-LOCK, SCREW-LOCK, Without locking system


yellow, black


40g, 45 g, 55 g


CE EN 362, CE EN 12275 type B, EAC, CE EN 12275 type B

Major axis strength

23 kN

Minor axis strength

8 kN

Open gate strength

7 kN

Gate opening

18 mm, 20 mm, 23 mm