Locking carabiners for indoor and sport rock climbing. The dual pin and auto locking carabiners use a spring mechanism to snap in a clocked position, while the screw gate carabiner locks using threads which must be twisted into a locked position. A lock-type carabiner is particulary useful for climbing applications.
Orbit Twist Lock Carabiner
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Sale Price: $10.46
C.A.M.P.'s Orbit Twist Lock makes a great combination with most auto-locking belay devices and excels on the sharp end where the security of a locking biner can add serious piece of mind. With its keylock nose the Orbit Twist Lock snaps in and out of anchors and fixed lines without snagging. The...
Black Diamond Nitron Screwgate Carabiner
Price: $9.95 !!Buy at Amazon.com
With a light, ergonomic design and secure screwgate sleeve, the versatile Black Diamond Nitron Screwgate carabiner is the ideal choice for everything from belaying to anchor building.
Mad Rock Super Tech Screw Carabiner (Black)
Price: $7.95 !!Buy at Amazon.com
One of the lightest keylock screwgates in the world.
Black Diamond RockLock Screwgate Carabiner
Price: $9.95 !!Buy at Amazon.com
Black Diamond's largest belay and rappel locker. Square hinge end holds belay loop securely in place. Slightly curved spine maximizes gate opening.
Black Diamond Nitron Screwgate Locking Carabiner
Price: $11.95 !!Buy at REI.com
Carry a couple of the lightweight Black Diamond Nitron Screwgate locking carabiners to secure yourself to an anchor before belaying your buddy up.
Lockstraps 801 Locking Carabiner
Price: $11.95 !!Buy at Amazon.com
Heavy duty, heat treated steel combination locking carabiner. Perfect for many applications. Up to 600 pounds of strength.
CAMP USA Guide Lock Carabiner
Price: $13.90 !!Buy at Backcountry.com
For a super-burly workhorse biner, look no further than the CAMP USA Guide Bet Lock Carabiner. Rated to 32kN, the D-shaped Guide is perfectly equipped for use in anchor and belay applications and features a reliable screw gate for secure closed systems.
PETZL Am'D Screw-Lock Carabiner
Price: $13.95 !!Buy at Eastern Mountain Sports
The Petzl Am'D Screw-Lock Carabiner is a manual locking, multi-purpose carabiner for connecting devices to harness or to use at the end of a lanyard. Ideal in dirty environments where an automatic locking mechanism could malfunction.
DMM Sentinel HMS Locking Carabiner
Price: $14.90 !!Buy at Backcountry.com
Clip into the DMM Sentinel HMS Screwgate Carabiner for belaying, making lightweight anchors, or streamlining your rack. This mini locker complements your skinny-rope setup, and won't snag your cord thanks to it's keylock nose. The offset shape gives it the functionality of larger carabiners...
Price: $13.95 !!Buy at Amazon.com
FEATURES of the Camp USA Orbit Twist Lock Carabiner An auto-locking carabiner lighter than most non-lockers! Automatic lock requires two actions to open Easy to operate with one hand A great companion for auto-locking belay devices SPECIFICATIONS of the Camp USA Orbit Twist Lock Carabiner Weight: 1.8...
Mad Rock Ultra Tech HMS Triple Lock Locking Carabiner
Price: $12.95 !!Buy at Amazon.com
The MADLOK-HMS carabiner is a great match for your belay device. This triple action auto-lock carabiner also features the forged I-beam construction and a snag proof keyless nose.
Black Diamond VaporLock Screwgate Locking Carabiner
Price: $14.95 !!Buy at REI.com
The ultralight Black Diamond VaporLock locking carabiner is an ideal choice for belaying, lowering and rappelling.
PETZL Hera Attache Screw-Lock Carabiner
Price: $15.95 !!Buy at Eastern Mountain Sports
Climb4Life with the turquoise Attache Screw-Lock Carabiner, and Petzl will donate $1 to the HERA Women's Cancer Foundation!
CAMP USA Atlas Lock Carabiner
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Sale Price: $17.95
Camp USA designed the Atlas Lock Carabiner for rescue, rigging, and tactical situations. Made out of an amazingly strong aluminum, the Atlas boasts a major axis strength of 40kN, and the keylock nose adds a lot of convenience when you're cleaning your setups. The Atlas comes with either a screw...
Petzl OK Oval Screwgate Locking Carabiner
Price: $17.95 !!Buy at REI.com
The symmetric shape of the Petzl OK Oval Screwgate locking carabiner makes it especially useful when rigging hauling systems.
HMS Belay Lock Carabiner
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Sale Price: $18.71
The HMS Belay Lock Carabiner from C.A.M.P. features a small inner gate that closes over the belay loop once the biner is in its optimal position for belaying or rappelling. First, attach the biner to the belay loop and let it close. Second, open the small gate and insert the belay loop. Third, open the...
HMS Twist Lock Carabiner
Price: $17.95 !!Buy at CampSaver.com
The HMS Twist Lock Carabiner from C.A.M.P. is a double-action twist lock carabiner which can easily be engaged with one hand.
PETZL OK Screw-Lock Carabiner
Price: $17.95 !!Buy at Eastern Mountain Sports
For use with pulleys and hauling systems, the symmetric OK manual screw-lock carabiner is easy to use with one hand.
Petzl William Locking Carabiner
Price: $17.95 !!Buy at Amazon.com
A large carabiner can come in handy in many places. This one's shape and size means it's useful for belaying and rappelling with the Munter hitch with single or double ropes, anchoring multiple ropes and slings and keeping the belay station organized.
MAMMUT Bionic HMS Twist-Lock Carabiner
Price: $18.95 !!Buy at Eastern Mountain Sports
Developed for high performance, the Mammut Bionic HMS belay carabiner uses Beam technology to achieve less weight without any strength loss.
HMS 3 Lock Carabiner
Price: $19.95 !!Buy at CampSaver.com
The C.A.M.P. HMS 3 Lock Carabiner is a Triple action auto-locking HMS carabiner that requires three actions to open the gate making it safer than standard twist lock carabiners, which require two actions to open. This is the best choice when using an auto-locking carabiner to belay.
Black Diamond GridLock Belay Screwgate Locking Carabiner
Price: $19.95 !!Buy at REI.com
The hot-forged Black Diamond GridLock Belay Screwgate locking carabiner has a patent-pending design that keeps the 'biner properly oriented while you're belaying.
Black Diamond Magnetron Gridlock Screwgate Carabiner
Price: $24.95 !!Buy at Amazon.com
Combining maximum security and ease of use like never before, the Black Diamond Magnetron Rocklock uses the power of magnets to reinvent the auto-locking carabiner. Magnetron Technology uses two magnetic arms in the gate and a steel insert in the carabiner's keylock nose to create an ultra-secure,...
DMM Revolver Locking Carabiner
Price: $36.90 !!Buy at Backcountry.com
The DMM Revolver Locking Carabiner features an integrated pulley to reduce rope drag on a meandering rock pitch or reduce friction from your crevasse rescue system. Popular among search and rescue personal, this unique carabiner reduces the number of pulleys needed in complicated hauling and lowering...
Black Diamond Positron Screwgate Carabiner
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DECENT FEATURES of the Black Diamond Positron Screwgate Carabiner Deep basket reduces fumbly clips Key lock nose prevents snagging Easy-to-hold functional shape Screwgate sleeve The SPECS Weight: 2 oz / 56 g Closed Gate Strength: 5.620 lbf / 25 kN Open Gate Strength: 1.798 lbf / 8 kN Minor Axis Strength:...
Fusion Climb Contigua Straight Gate Carabiner
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CONTIGUA- Super light mini aluminum and ultra lightweight yet strength tested to 23kN. Great for female climbers and youth climbers. Easy to clip, great and soft gate action. A choice for draw sets. Available in various colors. Ultra small and light (only 1.3oz), yet strength tested to 23kN! When light...
The locking mechanism creates a secure anchor which is much more difficult to accidentally open. This can happen during belaying and anchoring activities if the climbing rope is twisted or the carabiner is pressed against a rock or other gear. The locking mechanism provides added security. Typically, climbers need 2 or 3 locking carabiners and a belay device for anchoring gear and belays.
The locking carabiner has sleeve that slides or screws over the gate which locks it closed. It has an "auto locking" spring loaded screw sleeve, or a threaded screw gate. The spring sleeve rests in the closed position. The climber must twist the sleeve to open the gate. Twist lock sleeves are easy to use and can be operated with one hand. These are popular for indoor and sport climbing.
Screw gate type locks can also be operated with one hand. When locked, the sleeve screws over the latch preventing the gate from opening unless it is unscrewed. This type is popular with outdoor, canyon and big wall climbing. They considered by most climbers to be the most secure type of locking carabiner. These are slightly larger than the non-locking version which makes it applicable to use for connecting two ropes together, or connecting a rope to a runner. The locking type can be found in all of the same shapes as the snap type: Oval, D-symmetrical and A-symmetrical.
Belaying, rappelling and abseiling are the most common uses for locking carabiners. The largest of the locking types are the most popular as it provides more room for the rope and sling, or two ropes. Plus the additional space gives maneuvering room for fingers.