# The Best Locking Carabiners Source: https://climbingnest.com/best/best-locking-carabiners Updated: 2026-09-15 Publisher: Climbing Nest. Our score is an editorial rating out of 10 (fit 35%, features 25%, build 20%, value 20%), not a customer rating. Method: https://climbingnest.com/how-we-research#our-score Locking carabiners live at the most critical points of the system: your belay device, your rappel setup, and the master points of your anchors. They vary more than they look like they should. Screwgates are simple and glove-friendly, auto-locking gates remove the human error of forgetting to lock, and shapes range from large pear-shaped HMS lockers for belaying to compact D shapes that maximize strength for anchor building at minimal weight. We weighed gate security, how easily each locker opens and closes with one hand or cold fingers, resistance to cross-loading, keylock noses that will not snag, and weight for its size. Belayers should start with a dedicated HMS with some form of anti-cross-load feature, trad and multipitch climbers will want a handful of light compact lockers for anchors, and anyone who has ever found a screwgate vibrated open should give the auto-lockers a serious look. ## Picks ### 1. BLACK DIAMOND RockLock Screwgate Locking Belay/Rappelling Carabiner, Black Our score: 8.6/10 (Fit for the job 9/10 · Features and specs 8/10 · Build and materials 9/10 · Value 8/10) Black Diamond's RockLock screwgate in black, a pear-shaped locking carabiner for belaying and rappelling. Pros: - Pear shape gives room for a Munter hitch or GRIGRI loading - Screwgate is simple to use and easy to check visually - Black Diamond build quality for regular belay use Cons: - Screwgate can loosen if not checked during long sessions - Heavier than lightweight wiregate lockers Details: https://climbingnest.com/product/B0GK9N7F4D ### 2. Petzl William Carabiner - Large, Pear-Shaped Locking Carabiner for Belay Stations - Screw-Lock Our score: 8.6/10 (Fit for the job 9/10 · Features and specs 8/10 · Build and materials 9/10 · Value 8/10) Petzl's William large pear-shaped screw-lock carabiner, made for belay stations and holding several knots. Pros: - Large pear shape holds multiple ropes and a Munter hitch easily - Screw-lock gate is simple to operate with gloves - Great for building anchors on multi-pitch belays Cons: - Large size adds weight to the rack - Can be too roomy for a GRIGRI to sit neatly Details: https://climbingnest.com/product/B00SR59CKY ### 3. EDELRID HMS Strike Locking Carabiner - Triple Lock Silver/Icemint Our score: 8.6/10 (Fit for the job 9/10 · Features and specs 8/10 · Build and materials 9/10 · Value 8/10) EDELRID's HMS Strike triple lock carabiner in silver and icemint, an auto-locking pear locker for belaying. Pros: - Triple lock closes automatically for added security - HMS shape suits Munter hitches and belay devices - Icemint color helps identify it on a harness Cons: - Triple lock can be slower to open with cold hands - Heavier than simple screwgate lockers Details: https://climbingnest.com/product/B07XG252GG ### 4. GM CLIMBING Screwgate Locking Carabiner Red CE UIAA Certified Heavy Duty, Pack of 2 Our score: 7.8/10 (Fit for the job 8/10 · Features and specs 7/10 · Build and materials 7/10 · Value 9/10) GM CLIMBING's red screwgate lockers in a pack of 2, CE UIAA certified heavy duty carabiners for climbing and rigging. Pros: - Pack of 2 gives spare lockers for anchors and belay devices - CE UIAA certification is clearly listed - Heavy duty build handles regular climbing use Cons: - Screwgate lockers need checking to stay fully closed - Budget brand lacks the reputation of Petzl or Black Diamond Details: https://climbingnest.com/product/B08LMLJQSR ### 5. SEPEAK UIAA CE 30kN Locking Climbing Carabiner, Heavy Duty Screwgate Clip, 2pc, Black Our score: 7.5/10 (Fit for the job 7/10 · Features and specs 8/10 · Build and materials 7/10 · Value 8/10) SEPEAK's UIAA CE 30kN heavy duty screwgate carabiners in black, a 2pc set for climbing and rigging use. Pros: - 30kN rating is clearly stated for strong locking use - 2pc set provides lockers for anchors or belay setups - Black finish looks understated and hides wear Cons: - Heavy duty build is heavier than lightweight lockers - Less-known brand than established climbing hardware makers Details: https://climbingnest.com/product/B0C7BR6KZ7 ### 6. PETZL Omni Screw-Lock Carabiner Our score: 7.4/10 (Fit for the job 7/10 · Features and specs 7/10 · Build and materials 9/10 · Value 7/10) Petzl's Omni screw-lock carabiner, a semi-circle locker designed for closing harness belay points and rope work. Pros: - Semi-circle shape is useful for joining harness attachment points - Screw-lock gate gives a secure closure for rigging tasks - Petzl quality for rope access and rescue use Cons: - Not the best shape for everyday belay device use - Screw-lock is slower to open than auto-locking gates Details: https://climbingnest.com/product/B01LXTBJR5 ### 7. Yachee Rock Climbing Screwgate Carabiner, 30KN 5620lb Locking Climbing Gear, CE Certified Our score: 7.2/10 (Fit for the job 7/10 · Features and specs 7/10 · Build and materials 7/10 · Value 8/10) Yachee's 30KN screwgate carabiner rated to 5620lb, a CE certified locking climbing carabiner for budget kits. Pros: - 30KN and 5620lb ratings are both listed for easy comparison - CE certification adds some confidence for climbing use - Budget price suits spare lockers for anchors and rigging Cons: - Single carabiner only, so you may need several - Lesser-known brand compared with Petzl or Black Diamond Details: https://climbingnest.com/product/B07F7YHJB5 ### 8. XINDA Screwgate Locking Carabiner Clip - Professional Rock Climbing Carabiner Screw Lock, 2 pcs Black Our score: 6.2/10 (Fit for the job 6/10 · Features and specs 5/10 · Build and materials 6/10 · Value 8/10) XINDA's screwgate locking carabiners in black, 2 pcs marketed as professional rock climbing screw lock clips. Pros: - 2 pcs give a spare locker for rigging or belay setups - Screw lock gate provides secure closure for anchors - Affordable option for climbers building a first rack Cons: - Check the kN strength rating before using it for anchors - Professional claim is vague and not supported by certification details Details: https://climbingnest.com/product/B08MBPHPDN As an Amazon Associate I earn from qualifying purchases.