Black Diamond Rocklock Twistlock Carabiner

Our largest locking carabiner, the RockLock is a one-hand operable autolocking twistlock carabiner perfect for belaying, rappelling or anchors, and features a hot-forged lightweight construction and a large rope-bearing surface for greater durability.

Our largest belay and rappel locker,

the Black Diamond RockLock carabiner features a keylock nose, is Munter hitch compatible and the autolocking twistlock sleeve can be operated with one hand. Now featuring a hot-forged lightweight construction and a large rope-bearing surface for greater durability, the RockLock is the go-to screwgate for every day climbing season after season.