Locking Carabiners

Showing 9 of 9 results
  • DMM Boa Carabiner

    DMM Boa Carabiner

    A large locking carabiner perfect for rigging and use as a central connection point
  • Petzl Sm'D Carabiner

    Petzl Sm'D Carabiner

    Feature packed for versatility but lightweight and compact - D-shaped locking carabiner for a variety of climbing situations and uses.
  • Petzl William Carabiner

    Petzl William Carabiner

    A large capacity locking carabiner with an ergonomic pear shape for ease of handling and use even when wearing gloves.

As with non-locking carabiners, there are many different designs of locking carabiner brought about by the many different climbing tasks required of them. 
Oval Shape
The original style of carabiner.  Versatile in use they have a greater gear holding capacity than other shapes.  They have a uniform shape across the to and bottom which limits the shifting load shifting - good for aid climbing, setting the load at the centre of the curve so runners wont shift. 

D Shape
By holding loads off centre by the stronger back (non-gated side) of the carabiner, a smaller, lighter carabiner with a larger gate opening can be just as strong as an oval carabiner.  A variation of this the Asymmetric D Shape (or offset D shaped) carabiner is the most popular design, paying slightly more and sacrificing a little strength gives an even larger gate opening, a smaller bottom end reduces weight further.

Pear Shaped
Also called HMS carabiners these carabiners are similar to the asymmetric D shaped carabiners, but have widelarge gate openings allow for easy clipping of big or numerous knots and gear.  Originally designed to be used with the a munter (Italian) hitch for belaying and abseiling, it works great at anchor points.  Dedicated belay carabiners are now more available possessing features that help maintain orientation to prevent cross-loading onto the weaker axis of the carabiner.

Locking Gate
There are a few different locking mechanisms to secure the gate when closed.  In climbing the Screwgate is the most popular, requiring the user to manually screw the sleeve over the the gate opening to lock it.  Then there a number of auto-lock or twist-lock which thanks to an internal spring lock once the gate is closed, these can require a simple twist and slide to unlock or can be more complicated.