Locking Karabiners

The Mammut Crag HMS is a durable and sleek HMS carabiner featuring a Key Lock nose and Screw Gate locking mechanism.

The DMM Shadow HMS is a large yet lightweight HMS karabiner, designed for efficient belaying, rigging, and ropework. With a wide, deep basket that easily holds up to three clove hitches (<9.5mm rope) and a short gate for maximum opening, it delivers excellent handling and strength in a compact form. Available in Screwgate and multiple locking gate options, it’s an essential choice for climbers and professionals seeking high performance with low weight.

The Beal Be Lock is a large HMS carabiner designed for easy use with double (halves and twins) rope systems. The large surface area provides easy control in all weather. The Be Lock is particularly suitable for HMS belays and double rope manoeuvres, such as capstan or half-capstan.

The Beal Be Safe is a HMS screwlock karabiner that's perfect for use with belay devices as it can accommodate two ropes at once, without the risk of them becoming overlapped in the event of a fall. The reception cradle ensures that the two ropes slide together and does not generate friction on the sides of the carabiner when the rope is braked. This is true whether rappelling or stopping a fall.

The DMM Ceros is a purpose-built belay karabiner designed to reduce the risk of cross-loading and improve rope handling. Its internal wire gate keeps the karabiner captive on the belay loop, while the horn on the spine prevents assisted braking devices from moving out of position. Lightweight yet incredibly strong, the Ceros features I-Beam construction, a full section top bar, and a snag-free keylock nose. Available in Screwgate, Kwiklock, Locksafe, Durolock, and ANSI-certified options, it’s the ultimate belay connector for climbers who prioritise safety and reliability.