Auto-Locking Carabiners

Height Dynamics’ auto-locking carabiners are engineered to deliver reliable, hands-free security in any high-stakes environment. These carabiners lock automatically after each opening, providing unmatched stability and reducing the risk of accidental disengagement. Built to meet the highest safety standards, they’re perfect for climbing, rope access, rescue, and industrial tasks. With every connection solid and every movement secure, you can focus on the job at hand with confidence. Shop our range of auto-locking carabiners online and experience the strength of safety in every click.

33 products

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CAMP Atom 3Lock Alloy Carabiner

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$38.95
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CAMP Steel HMS D 3Lock Carabiner

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$36.95
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CAMP Steel HMS D 3Lock Carabiner - Black

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$34.95
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DMM Ultra O Locksafe Carabiner

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$47.95
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Edelrid D-Classic 3000 Carabiner

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$44.95
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Edelrid Oval Power 2500 Triple II Carabiner

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$30.95
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ISC HMS Alloy Karabiner

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$41.95
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ISC Klettersteig Keylock Triple Action Karabiner

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$33.95
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ISC Klettersteig Keylock Triple Action Karabiner - Black

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$34.95
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ISC Klettersteig Keylock Triple Action Karabiner with Pin

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$34.50
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ISC Offset Alloy Karabiner

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$31.50
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ISC Small Iron Wizard Karabiner

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$49.50
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ISC Steel Oval Triple Action Keylock Karabiner

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$23.50
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KONG Large Stainless Steel Carabiner

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$54.95
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KONG Large Steel Autoblock Carabiner

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$47.95
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KONG Large Steel Autoblock Carabiner - ANSI

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$54.95
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KONG OVALONE Aluminium Carabiner

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$31.95
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KONG OVALONE Steel Autoblock Carabiner

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$48.95
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KONG OVALONE Steel Autoblock Carabiner - ANSI

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$59.95
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KONG Ovalone Steel Autoblock Carabiner - DNA

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$79.95
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Kong X-Large Auto-Block Carabiner

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$47.95
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PETZL AMD Alloy Carabiner

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$44.95
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PETZL OK Alloy Carabiner

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$34.50
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PETZL Omni Locking Carabiner

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$69.95
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PETZL Oxan Oval Triact Carabiner

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$41.95
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PETZL SMD Alloy Carabiner

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$27.95
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PETZL Vertigo Twist Lock Carabiner

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$54.95
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ROCK EXOTICA Pirate Carabiner

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$41.95
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ROCK EXOTICA Pirate Carabiner - Black

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$43.95
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ROCK EXOTICA Pirate Carabiner - Wire Eye

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$58.95
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ROCK EXOTICA RockD Auto-Lock Carabiner with Lanyard Pin

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$61.50
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SINGING ROCK D Steel Connector Triple Lock

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$28.95
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Why an auto locking carabiner matters

The weak point of any locking gate is the human step. An auto lock carabiner closes and locks on its own when released, using a two-action (twist lock) or three-action (triple lock) gate. That removes the forgot-to-lock failure entirely, which is exactly what you want on connections you clip and unclip all day, and on any life-safety link where an open gate is not an option.

How our auto locking carabiners are different

We are an independent height safety specialist, so we stock auto locking carabiners from the brands we trust and use, not a single label.

Every connector is rated and certified, with strength values in kilonewtons (kN) you can match to your system, across twist lock and triple action gates, alloy and steel bodies, and shapes for different jobs. This is a step up from hardware store clips, which are not rated for life-safety at all.

Compare across the range: Steel CarabinersAlloy Carabiners and All Connectors.


How to choose the right auto locking carabiner for you

  1. Two actions or three. Twist lock (double action) is fast and secure for most work. Triple action adds a third movement for maximum protection on critical connections.
  2. Material. Alloy saves weight when you carry several. Steel takes the wear at fixed and high-use points.
  3. Shape and gate opening. Match the shape to what it connects and make sure the gate opens wide enough for the job.
  4. Check the rating. Confirm the kN rating suits your load and the connector is certified for the role. If it has no rating, it is not for life-safety.


FAQs about Auto Locking Carabiners

What is an auto locking carabiner?

A carabiner whose gate locks itself the moment it is released, using a twist lock or triple action mechanism. There is no sleeve to remember to screw shut.