What Our Gearhead(R) Experts Are Saying: "I reach for this biner anytime I'm belaying because its isolation feature actually works-my belay loop stays captured so the carabiner can't twist or cross-load. The hot-forged shape feels dialed, the screwgate is smooth, and the rounded rope-bearing surface feeds slack cleanly. Once you've used a Gridlock-style biner, it's hard to go back." We trust the Black Diamond Gridlock Carabiner Screwgate whenever a clean, predictable belay experience matters most. Black Diamond built this uniquely shaped carabiner to stop cross-loading before it starts, locking the belay loop into its own isolated section so the connection stays oriented the way it should-no twisting, no shifting, no surprises at the anchor. Hot-forged from 7075 aluminum with 25% pre-consumer recycled content, the Gridlock integrates an I-beam spine and a wide, rounded rope-bearing surface for smoother handling and reliable strength. The intuitive screwgate adds simple security, while the patented geometry keeps the belay loop exactly where it belongs. It's a dependable, purpose-built tool that streamlines belays and boosts confidence on every climb.