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Petzl William Screw-Lock Carabiner


The lightweight William large-capacity asymmetrical carabiner is made of aluminium. It has a pear shape that is practical for easily connecting multiple items. Its fluid interior design and Keylock system facilitate handling.

The William carabiner is available in the manual screw-lock. William can be used with the Captiv bar to favour positioning of the carabiner along the major axis, to limit the risk of it flipping and to keep it integrated with the device.

4 in stock (can be backordered)


  • The William’s pear shape offers a large capacity and wide opening, which facilitates connection of multiple items and allows a Munter hitch to be easily created in case of retreat
  • This aluminium carabiner is light, reducing the weight of equipment the worker at height needs to carry
  • Easier handling, thanks to its fluid interior design, which limits the risk of having a catch point and facilitates rotation of the carabiner, as well as the keylock system to avoid any involuntary snagging of the carabiner
  • The H-shaped cross-section ensures an improved strength-to-weight ratio and protects markings from abrasion
  • Currently available in screw-lock locking system: the manual screw-lock with red band provides a visual warning when the carabiner is unlocked


  • Material: aluminium
  • Weight: 85g
  • Colour: Grey
  • Major axis strength: 27 kN
  • Minor axis strength: 8 kN
  • Open gate strength: 8 kN
  • Gate opening: 28 mm
  • Certification(s): CE EN 362, EAC, NFPA 1983 Technical Use

Additional information

Weight 85 g



Locking System




Petzl William Carabiner Screw-lock Grey
Petzl William Screw-Lock Carabiner