With a keylock locking mechanism that does away with the hook on the carabiner’s nose, the Black Diamond Rocklock Screwgate Carabiner effectively eliminates rope snags and catches.
The oversized Rocklock is the biggest belay locking carabiner from Black Diamond. For this reason, it can be easily used with various belaying and rappelling techniques, even when wearing gloves. You can also use a Munter hitch or even two ropes with it.
The spine of the Black Diamond Rocklock is slightly curved which results in a wider gate opening. This, in turn, leads to quicker clipping of ropes or other gear. The square hinge end secures the belay keeping it in place. The size of the ‘biner helps in enabling users to operate the screwgate with one hand.
Given its size, the Rocklock has a weight of 85 grams. With its gate closed, it has a strength of 24 kiloNewtons. When opened, this is reduced to 8 kiloNewtons. The minor axis, on the other hand, registers 7 kiloNewtons. Gate clearance is 21 mm.
The carabiner’s body is colored mocha but the sleeve is available in an assortment of colors.