Product Category
Auto-Locking Carabiners

Auto-Locking Carabiners Categories

DMM Directors are versatile, compact, termination connectors. Strong yet lightweight, the Directors use our shortest gate to maximise gate opening and clearance. Directional design loads the connector in the strongest orientation and the ‘Rhino’ horn stops devices loading on the spine.

Auto-Locking Carabiners Products

CT Hitch Hiker Steel Oval Carabiner
The Pillar steel oval carabiner from Climbing Technology of Italy is safe, effective, and versatile. It is suitable for connecting devices such as large pulleys. High resistance, made of hardened carbon steel. Symmetrical shape. Catch-free gate. This is the carabiner used with the RopeTek Hitch Hiker system.
3C4460A
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$19.99
DMM 30kN Boa Locksafe
The Boa Carabiner from DMM is hot forged in Wales. A light but extremely strong carabiner that fits snugly into the hand. Large gate opening allows easy, one handed clipping. Ideal where weight and user friendliness is a real issue. I-Beam section for increased strength to weight ratio. Keylock clean nose and fully heat treated aluminium for lightness and maximum strength.
A907
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$27.99
DMM American O ANSI Gate Rated Carabiner
An oval that packs a punch. Larger than our classic Ultra O, it shares the same stable loading characteristics but with more volume when required. This addition to our oval connector range means we now have the compact PerfectO, the industry standard Ultra O and the larger AmericanO.

The AmericanO is also DMM's first ANSI (American National Standards Institute) compliant true oval connector. It is especially suited for industries that apply this standard. A DMM oval for all applications.
A347ANSI
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$32.99
DMM American O Locksafe Carabiner
An oval that packs a punch. Larger than our classic Ultra O, it shares the same stable loading characteristics but with more volume when required. This addition to our oval connector range means we now have the compact PerfectO, the industry standard Ultra O and the larger AmericanO.

The AmericanO is also DMM's first ANSI (American National Standards Institute) compliant true oval connector. It is especially suited for industries that apply this standard. A DMM oval for all applications.
A347
DMM Klettersteig ANSI Rated Gate Carabiner
The Klettersteig features a very wide gate opening of 26mm, that combines with its extended top bar and high internal volume to give ease of use with thick webbing and ropes. These characteristics also make it easy to use while wearing gloves. High major and minor axis strengths give appropriate safety margins for rescue and heavy duty applications.
A847ANSI
DMM Perfect O Locksafe Carabiner
The PerfectO range uses a new extra short gate to make the profile as compact as possible, minimising eye-to-eye length whilst maintaining usability and easy one-handed use. The true oval shape provides effective centring of loads and the fully rounded rope bearing areas increase carabiner and rope longevity. Its keylock nose allows snag-free operation. The straight gate version is ideally suited for racking gear and the colour options help to quickly differentiate between equipment. This is the smallest Locksafe gated carabiner that DMM makes and is 15mm shorter than an Ultra O yet still retains a strong construction.
A597
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$27.99
DMM Perfect O with Captiv Bar
The PerfectO range uses a new extra short gate to make the profile as compact as possible, minimising eye-to-eye length whilst maintaining usability and easy one-handed use. The true oval shape provides effective centring of loads and the fully rounded rope bearing areas increase carabiner and rope longevity. Its keylock nose allows snag-free operation. The straight gate version is ideally suited for racking gear and the colour options help to quickly differentiate between equipment. This is the smallest Locksafe gated carabiner that DMM makes and is 15mm shorter than an Ultra O yet still retains a strong construction.
A597CB
DMM Revolver Locksafe
The DMM Revolver Carabiner brings a completely new take on the way carabiners work as it uses rolling friction rather than sliding friction as in a normal. Carabiner when the rope runs over the carabiner bar. Here, the rope rolls over the pulley wheel which means much less friction is created. Less friction means less force holding the climber back which makes upward progress a lot easier.
A277
DMM Revolver Rig Locksafe
The Revolver Rigs bring industrial strength and performance DMM’s awesome Revolver carabiner with pulley! This carabiner can be used in any running rope system to increase efficiency. The Revolver Rig comes into its own when flexibility and efficiency are paramount, it excels in improvised rescues, compact mechanical advantage systems and reducing friction in rigging featuring ropes.

The Revolver Rigs feature a becket with a 90 ° twist allowing connection of textiles or connectors while minimizing inter-rope contact for greater efficiency. Integrating a highly efficient pulley wheel into a connector that resists cross-loading creates a secure, adaptable device that increases options when improvising or creating complex rigging set ups, while reducing the number of devices the user needs to carry to construct such configurations.
A5871CB
$102.99
DMM Rhino Locksafe Carabiner
The Rhino aluminum carabiner from DMM features an extra large internal volume and gate clearance to load all sorts of different hardware and rope configurations. This makes it particularly suitable for clipping safety lines and anchor points. The “Horn” feature helps prevent cross loading with certain devices. Cold forged and fully heat treated aluminum, the design also includes an I-beam design down the spine of the device to increase strength while minimizing weight.
A547
DMM Shadow Locksafe Carabiner
The Shadow from DMM is a very light-weight ergonomic carabiner incorporating a clean nose gate mechanism and I-Beam hot forged construction for a high strength to weight ratio.
A307
DMM Steel Locksafe Carabiner
The Offset D Locksafe from DMM is an auto-locking steel carabiner which features a shape that maximizes gate clearance. It is made with 12mm barstock for maximum strength. Cold forged and fully heat treated carbon steel for high strength and durability. Recommended for general use in high strength environments.
C817
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$30.99
DMM Ultra O Durolock
The DMM Ultra O is a classic climbing carabiner trusted by professionals and amateurs around the world. Now the Ultra O has been coupled with DMM’s patented Durolock design to provide a safe and easy quadruple-action auto-locking ability to minimize the chances of accidental gate opening and maximize security. Sophisticated yet functional, the gate is operable with one hand. The oval shape of the Ultra O facilitates multiple connections and the round basket allows any of the connections to self-center when weighted.
A324
DMM Ultra O Locksafe Carabiner
This ultra light clean nose oval carabiner features I-Beam construction. Double locking. Hot Forged body. Suitable for a variety of uses including rope access and hauling systems.
A327
DMM Ultra O Locksafe Carabiner - 3 Pack
The Ultra O carabiner from DMM now comes in even more colors. DMM provides multiple colors which can come in handy in training situations. This allows the instructor to precisely describe what is going on with each carabiner. Beyond the color these are exactly the same as the standard auto-locking Ultra Oval.
A327-P3
DMM Zodiac Locksafe
The Zodiac from DMM is an auto locking D shaped carabiner which maximizes the gate clearance. It features I Beam construction for increased strength to weight ratio and a keylock clean nose for a snag free connection. Hot forged and fully heat treated aluminium for lightness and maximum strength. Sealed for corrosion protection. Individually marked for traceability.
A827
ISC Mini-HMS Supersafe Carabiner - 27kN
ISC’s Mighty Mouse is a small, double-locking compact carabiner. Its size makes it ideal for attaching rope grabs and ascending devices to your saddle dee rings. The mighty mouse is made from high strength aluminum alloy with a polished finish. Individually inspected and CE approved.
KH214SS
Kong Ovalone DNA Black Carabiner ANSI Rated
Special “helical-shaped” connector with a twisted carbon steel body and circular bar, a must-have when an “offset” load is required. It permits 90° rotation of any connected device (descenders, rope clamps, fall arresters, etc.), optimizing the operating alignment. Available with Auto Block (3 movements) and Twist Lock (2 movements) sleeve, conforms to CE and ANSI standards.
414110ZOZKK
Petzl Am’D Triact Locking Carabiner Gold
This Petzl Tri-act carabiner is rated for both tree climbing and fall arrest. 6,295 lbs break strength. The asymmetrical aluminum Am’D carabiner has a D shape particularly suited for connection to diverse equipment such as descenders or positioning lanyards.
M34A TLY
Petzl AMD Ball Lock Carabiner
The ball lock carabiner is 4 5/8 inches long and has a mouth opening of 1". With a breaking strength of 6,295 lbs this aluminum carabiner is strong and also light.
M34A BL
Petzl AMD Triact Locking Carabiner
This Petzl Tri-act carabiner is rated for both tree climbing and fall arrest. 6,295 lbs break strength. The asymmetrical aluminum Am’D carabiner has a D shape particularly suited for connection to diverse equipment such as descenders or positioning lanyards.
M34A TL
Petzl AMD Triact Locking Carabiner Black
This Petzl Tri-act carabiner is rated for both tree climbing and fall arrest. 6,295 lbs break strength. The asymmetrical aluminum Am’D carabiner has a D shape particularly suited for connection to diverse equipment such as descenders or positioning lanyards.
M34A TLN
Petzl Bm'D Triact Locking Carabiner
The Bm’D lightweight asymmetrical carabiner is made of aluminum. It has a D shape particularly suited for connection to diverse equipment such as descenders or positioning lanyards. Its fluid interior design and Keylock system facilitate handling. The Bm’D carabiner has the TRIACT-LOCK automatic locking system. The sleeve is reinforced for greater front and lateral gate strength. Bm’D may be used with a CAPTIV positioning bar to favor loading of the carabiner along the major axis, to limit the risk of it flipping and to keep it integrated with the device.
M032AA00
Petzl OK Ball Locking Carabiner
The OK Bakkt-Lock Carabiner by Petzl is an automatic locking symmetric carabiner. The OK is designed for use with pulleys and hauling systems. Easy to use, even with gloves. Unlocks quickly with two movements, for increased safety. 5,400 lb breaking strength
M33A BL
Petzl OK Triact Locking Carabiner
The OK Triact-Lock Carabiner by Petzl is an automatic locking symmetric carabiner. The OK Triact-Lock is designed for use with pulleys and hauling systems. Easy to use, even with gloves. Unlocks quickly with two movements, for increased safety. 5,400 lb breaking strength
M33A TL
Petzl OK TRIACT Locking Carabiner Tactical Black
The OK Triact-Lock Carabiner by Petzl is an automatic locking symmetric carabiner. The OK Triact-Lock is designed for use with pulleys and hauling systems. Easy to use, even with gloves. Unlocks quickly with two movements, for increased safety. 5,400 lb breaking strength
M33A TLN
Petzl OXAN Trilock Carabiner
The Oxan oval steel carabiner from Petzl is adapted for difficult conditions. This auto-locking carabiner features a keylock system to help prevent snagging of the carabiner during maneuvers.
M72 TLA
Petzl Rollclip Triact Locking pulley carabiner
The Petzl Rollclip Non-Locking Pulley Carabiner is designed for use as a directional point on the Ascension handled rope clamp during short rope ascents. The keylock system prevents accidental snagging when putting the pulley in place and the gate opening on the pulley side makes it easy to install rope when the pulley is fixed to an anchor. The sheave is mounted on sealed ball bearings for excellent efficiency.
P74 TL
Petzl Rollclip Z Triact locking pulley carabiner
The Petzl Rollclip Z is a pulley-carabiner with a gate opening on the non-pulley side, enabling installation on anchors and devices. The H-cross section of the carabiner improves the strength-to-weight ratio of the system. The sealed ball bearings provide excellent efficiency and is a great accessory for a saddle with a rope bridge.
P75 TL
Petzl SM'D Triact Locking Carabiner
The Petzl Sm’D Carabiner is a compact asymmetrical aluminum carabiner recommended for workers looking to reduce weight to a minimum. The D shape makes it especially suitable for attaching devices, and the Triact-Lock action is secure but easy to use. The interior design of the Sm’D has rounded corners and edges to limit the risk of having a catch point and facilitates rotation of the carabiner lock system to avoid any snagging.
M39A TL
Petzl William Ball Lock Carabiner
The WILLIAM Carabiner by Petzl is a large, pear-shaped locking carabiner for belay stations and belaying with a Munter hitch. Practical for easily connecting multiple items, the ergonomics and Keylock system facilitate manipulations, even when wearing gloves. The Ball Lock gate provides easy and quick triple action locking and unlocking with a lock indicator, and the H-Frame design provides better strength and protects markings from rubbing off.
M36A BL
Petzl William Triact Locking Carabiner
The WILLIAM Carabiner by Petzl is a large, pear-shaped locking carabiner for belay stations and belaying with a Munter hitch. Practical for easily connecting multiple items, the ergonomics and Keylock system facilitate manipulations, even when wearing gloves. The Triact Lock gate provides easy and quick triple action locking and unlocking, and the H-Frame design provides better strength and protects markings from rubbing off.
M36A TL
Pro Climb Double Locking Aluminum Carabiner
This lightweight aluminum carabiner features a double locking gate with a snag free design at the gate opening. While not suitable for climbing, this carabiner is a great option for your Speedline system.
USR-14-ATL
Rock Exotica Pirate Auto-Lock Carabiner
The Pirate from Rock Exotica is an HMS style auto-locking carabiner. It features an improved and patented keylock design. The highest inward strength and the biggest gate opening.
C1 A
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$24.99
Rock Exotica Pirate Up-Lock
The Pirate Up-Lock carabiner utilizes a push-up and twist gate mechanism, allowing technicians to match gate styles to their existing equipment and gear configurations. As an HMS, or pear-shaped carabiner, the Pirate easily accommodates the use of a wide range of gear, webbing or ropes - either as a belay biner at the harness, or as a connector in a system. The Pirate's robust 0.5" diameter round frame will endure abuse from dirty ropes and metal connectors far beyond stamped carabiners with thin edges. The Pirate's durability matched with Rock Exotica's build quality ensures an impressive service life for the working professional or recreational enthusiast.
C1 U
Rock Exotica Pirate Wire Eye Carabiner
The Pirate WireEye from Rock Exotica is an auto-locking carabiner with a wire keeper that easily captures your bridge, lanyard or rope, keeping it right where you want it. The wire gate is surprisingly strong and will stay closed in most circumstances.
C1 WEA
Rock Exotica Rock D ORCA-Lock Carabiner
The rockD is the carabiner of choice when seeking the highest strength in a standard-sized aluminum frame. Available in the ORCA, Auto-lock, Screw-lock and other gate options, the rockD carabiner serves the broadest range of specialized uses. The rockD in non-lanyard versions, features a flattened, i-beam profile at the bottom and top bends, giving the carabiner a sleek profile, while providing low weight and high strength characteristics.
C2 O
Rock Exotica Rock O ORCA-lock Carabiner
Most ovals haven’t changed much since the dawn of time. Rock Exotica designed the RockO to be a modern oval carabiner that fits everything. It is stronger and features a big gate opening.
C3 O
Rock Exotica Rock O Wire Eye Auto Lock Carabiner
Rock Exotica’s oval carabiner just got an upgrade! The same great properties of the Rock Exotica RockO carabiner is now available with a WireEye wire keeper to keep your rope or belay loop where it belongs. Rock Exotica designed the RockO to be a modern oval carabiner that fits everything. It is stronger and features a big gate opening.
C3 WEA
Rock Exotica RockD Auto-Lock
The RockD carabiner from Rock Exotica is a super-strong “D”. It features a slightly angled gate for ergonomics and a wider gate opening.
C2 A
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$24.99
Rock Exotica RockD Auto-lock Black
The RockD carabiner from Rock Exotica is a super-strong D. It features a slightly angled gate for ergonomics and a wider gate opening. Tactical black color.
C2 A-B
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$25.99
Rock Exotica rockD Stainless Screw-Lock
The Rock Exotica rockD Stainless Steel Locking Carabiner is strong and compact. Featuring a stainless steel construction it is tough enough to hold up in the harshest of environments. The narrow, asymmetric "D" shape concentrates the load along the spine, which maximizes the strength of the carabiner along the major axis. Not only is the frame made from stainless steel, but also the components within the carabiner. Each piece will resist corrosion far beyond other non-stainless carabiners. The rockD carabiner also features snag-resistant keylock nose design, lock-status indicator, precision machined frame, and an angled gate for maximum gate opening.
C2S S
Rock Exotica rockD Up-Lock
The rockD Up-Lock carabiner utilizes a push-up and twist gate mechanism, allowing technicians to match gate styles to their existing equipment and gear configurations. The rockD is the carabiner of choice when seeking the highest strength in a standard-sized aluminum frame. The rockD carabiner serves the broadest range of specialized uses. The rockD in non-lanyard versions, features a flattened, i-beam profile at the bottom and top bends, giving the carabiner a sleek profile, while providing low weight and high strength characteristics.
C2 U
Rock Exotica RockO Auto-lock Carabiner
Most ovals haven’t changed much since the dawn of time. Rock Exotica designed the RockO to be a modern oval carabiner that fits everything. It is stronger and features a big gate opening.
C3 A
Rock Exotica rockO Up-Lock
The rockO upLock carabiner utilizes a push-up and twist gate mechanism, allowing technicians to match gate styles to their existing equipment and gear configurations. The rockO Up-Lock is a blend of the traditional oval and the rockD giving it more strength than the standard oval. This design is great for users that need extra room at the bottom of the carabiner while keeping their gear aligned.
C3 U