Best Carabiners 2026 — Locking, Non-Locking & Belay

The Black Diamond RockLock Screwgate is the locking carabiner that climbing instructors recommend as the starting point for new climbers building their first rack — the screwgate mechanism is the simplest to understand and inspect, the pear shape is the correct format for most belay devices and rappel setups, and BD's safety track record makes it the low-risk choice when the piece is connecting your harness to an anchor. At $19 it's priced appropriately for a safety-critical piece that should last 10+ years with normal use. The manual screwgate's only disadvantage is the habit requirement: always screw it shut, always check it. This habit is foundational to climbing safety regardless of which locking mechanism you use.

Petzl's Attache 3D is engineered specifically for the belay position — the three-dimensional spine shape keeps a GriGri or ATC-guide oriented in the correct loading plane during the rope management movements that belaying requires. Carabiners loaded across the minor axis (cross-loaded) have dramatically lower strength ratings than major-axis loading — the Attache 3D's 3D shaping reduces the likelihood of cross-loading during dynamic belay use. For climbers who belay frequently and want a carabiner designed specifically for the task (rather than a general-purpose locker used for belaying), the Attache 3D is the purpose-built option.

The Black Diamond Oz Wiregate is the carabiner for climbers building sport climbing quickdraws or alpine rack systems where every gram matters across 15–25 pieces. At 28g per carabiner, switching from 45g solid-gate carabiners saves 17g per piece — across a 20-piece sport rack that's 340g (nearly 12 oz) of weight reduction. The wiregate design's cold-resistance advantage is most relevant for ice climbing and high-altitude alpinism where temperatures cause solid gate springs to stiffen or freeze. For general sport climbing, wiregate vs. solid gate is largely a weight consideration — both function adequately in normal temperatures.

Black Diamond's HotWire Quickdraw 5-pack is the starting point for sport climbers transitioning from gym to outdoor climbing — at $79 for five draws it's the value entry into a quality quickdraw setup from the most trusted US climbing brand. The mixed gate design (solid bolt-end, wire rope-end) is BD's engineering compromise that prioritizes clip feel at the bolt (where smooth one-handed clipping matters) and weight at the rope end (where the carabiner is handled less and wire-gate weight saving applies). Building a 10-draw rack requires two 5-packs at $158 total — less than purpose-specific rope-end/bolt-end separate carabiner + sling combinations.

CAMP's Orbit locking 3-pack is the value option for climbers who need multiple locking carabiners — anchors require 2–3 lockers, rappels require 1–2, and personal anchors require 1–2, meaning a typical trad or multi-pitch climbing setup requires 6–8 locking carabiners. Buying individually at $19–22 per piece (BD or Petzl) adds up quickly; the CAMP Orbit 3-pack at $35 provides UIAA-certified locking carabiners at $11.67 each, building out a multi-piece locking system at half the cost. CAMP's Italian heritage (they've made climbing hardware since 1889) means the quality difference vs. BD or Petzl is negligible for most climbing applications.