12mm Boa HMS

The Black Diamond GridLock Screwgate Karabiner has been engineered to eliminate cross-loading during belaying. Its unique, patent-pending design isolates the harness belay loop behind the internal gate, ensuring the karabiner always stays properly aligned. Built with hot-forged construction, an I-beam spine, and a large rope-bearing surface, it offers maximum strength, smooth rope handling, and reduced wear. Easy to use, intuitive, and secure, the GridLock is the ultimate belay-specific karabiner for climbers who want safety and simplicity.

The Black Diamond RockLock Screwgate is BD’s largest locking karabiner, built for belaying, rappelling, and anchors. Its hot-forged aluminium construction combines durability with reduced weight, while the curved spine provides a wide gate opening for easier handling. The square hinge end keeps the belay loop securely in place, and the keylock nose prevents snagging. Munter Hitch compatible and one-hand operable, the RockLock is a dependable HMS-style connector for any climber.

The DMM Belay Master is a safety-focused belay karabiner with a nylon crossgate lock that prevents accidental unlocking and cross-loading. Its foolproof design ensures correct orientation, making it ideal for beginners and instructors. A full-section top bar delivers smooth rope handling and reduces gear wear, while its robust build resists rotation under load. Compatible with a wide range of belay devices, it’s a trusted choice for climbers of all levels.

The Edelrid HMS Bullet Screw Eco is a robust and reliable HMS karabiner with a screwgate closure for quick, secure, and intuitive handling. Its keylock design prevents snagging, making it ideal for belaying and use with Edelrid belay devices. Built with H-profile construction for maximum strength at minimal weight, it combines durability with performance. The Eco colour version is non-anodized, making it a more sustainable choice for environmentally conscious climbers.

The Edelrid HMS Strike Screw is a lightweight and compact HMS karabiner, ideal for belaying and abseiling. Its large internal volume makes rope handling easy, while the pear-shaped design is well-suited to belay devices and Munter hitches. Built with H-profile hot forging for strength-to-weight efficiency, it also features a keylock nose for snag-free use. A versatile all-rounder, perfect for trad and alpine climbing.

The Mammut Classic HMS Screwgate is a classic aluminium belay carabiner in medium-size pear-shape that is versatile for belay and anchor construction or for belaying with a variety of devices. Includes safety features such as orange unlocked marker and keylock nose.