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Locking Carabiners

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  • 63mm x 109mm / Blue / Screwgate DMM-UO-Screw-Blue SGT KNOTS Carabiner 63mm x 109mm / Titanium Lime / Screwgate DMM-UO-Screw-TitaniumLime SGT KNOTS Carabiner

    DMM UltraO Carabiner

    DMM
    $ 17.80 - $ 37.75
    $ 17.80 - $ 37.75
    $ 17.80 - $ 37.75
    $ 17.80

    Standard carabiners are used across the world by professionals and novices.  The classic oval shape simplifies numerous connections while the round...

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    $ 17.80 - $ 37.75
    $ 17.80 - $ 37.75
    $ 17.80 - $ 37.75
    $ 17.80
  • DMM Carabiner DMM Carabiner

    DMM PerfectO Carabiner

    DMM
    $ 17.80 - $ 29.35
    $ 17.80 - $ 29.35
    $ 17.80 - $ 29.35
    $ 17.80

    The keylock nose avoids catching while the compact exact oval figure makes it easy to use one-handed because loads are efficiently centered.  Due t...

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    $ 17.80 - $ 29.35
    $ 17.80 - $ 29.35
    $ 17.80 - $ 29.35
    $ 17.80
  • 111mm x 62mm / Orange Gray / Orbit Twist ARM-Orbit-TwistLock ARMBURY Climbing Gear 111mm x 62mm / Orange Gray / Orbit Twist ARM-Orbit-TwistLock ARMBURY Climbing Gear

    Armbury Orbit Carabiner Twist Lock

    ARMBURY
    $ 17.80 - $ 17.80
    $ 17.80
    $ 17.80 - $ 17.80
    $ 17.80

    Armbury Orbit Carabiners are oval-shaped with catch-free noses for smoother clipping and unclipping. The symmetrical structure is designed to be us...

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    $ 17.80 - $ 17.80
    $ 17.80
    $ 17.80 - $ 17.80
    $ 17.80
  • 111mm x 62mm / Black / Orbit Screw ARM-Orbit-ScrewLock ARMBURY Climbing Gear 111mm x 62mm / Black / Orbit Screw ARM-Orbit-ScrewLock ARMBURY Climbing Gear

    Armbury Orbit Carabiner Screw Lock

    ARMBURY
    $ 15.70 - $ 15.70
    $ 15.70
    $ 15.70 - $ 15.70
    $ 15.70

    Armbury Orbit Carabiners are oval-shaped with catch-free noses for smoother clipping and unclipping.  The symmetrical structure is designed to be u...

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    $ 15.70 - $ 15.70
    $ 15.70
    $ 15.70 - $ 15.70
    $ 15.70
  • 118mm x 76mm / Black / Hinge Screw ARM-Hinge-ScrewLock ARMBURY Climbing Gear 118mm x 76mm / Black / Hinge Screw ARM-Hinge-ScrewLock ARMBURY Climbing Gear

    Armbury Hing HMS Carabiner Screw Lock

    ARMBURY
    $ 16.75 - $ 16.75
    $ 16.75
    $ 16.75 - $ 16.75
    $ 16.75

    Armbury Hing HMS Carabiners are hot-forged alloy with catch-free noses for smoother clipping and unclipping. The circular shape of the basket makes...

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    $ 16.75 - $ 16.75
    $ 16.75
    $ 16.75 - $ 16.75
    $ 16.75
  • Domes Screw / Black / 112mm x 75mm ARM-Domes-ScrewLock SGT KNOTS Climbing Gear Domes Screw / Black / 112mm x 75mm ARM-Domes-ScrewLock ARMBURY Climbing Gear

    ARMBURY Domes Carabiner Screw Lock

    ARMBURY
    $ 15.70 - $ 15.70
    $ 15.70
    $ 15.70 - $ 15.70
    $ 15.70

    ARMBURY Heavy Duty Carabiner Large Dome Steel Carabiner for Climbing D Shape Carabiner Hook Gate Lock Caribiner Perfect for Rappelling,Rock Climbin...

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    $ 15.70 - $ 15.70
    $ 15.70
    $ 15.70 - $ 15.70
    $ 15.70
  • 112mm x 75mm / Orange Gray / Domes Twist ARM-Domes-TwistLock SGT KNOTS Climbing Gear 112mm x 75mm / Orange Gray / Domes Twist ARM-Domes-TwistLock ARMBURY Climbing Gear

    ARMBURY Domes Carabiners Twist Lock

    ARMBURY
    $ 17.80 - $ 17.80
    $ 17.80
    $ 17.80 - $ 17.80
    $ 17.80

    ARMBURY Heavy Duty Carabiner Large Dome Steel Carabiner for Climbing D Shape Carabiner Hook Gate Lock Caribiner Perfect for Rappelling,Rock Climbin...

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    $ 17.80 - $ 17.80
    $ 17.80
    $ 17.80 - $ 17.80
    $ 17.80
  • 118mm x 76mm / Gray Orange / Hinge Triple ARM-Hinge-TripleLock ARMBURY Climbing Gear 118mm x 76mm / Gray Orange / Hinge Triple ARM-Hinge-TripleLock ARMBURY Climbing Gear

    Armbury Hing HMS Carabiner Triple Lock

    ARMBURY
    $ 20.95 - $ 20.95
    $ 20.95
    $ 20.95 - $ 20.95
    $ 20.95

    Armbury Hing HMS Carabiners are hot-forged alloy with catch-free noses for smoother clipping and unclipping. The circular shape of the basket makes...

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    $ 20.95 - $ 20.95
    $ 20.95
    $ 20.95 - $ 20.95
    $ 20.95
  • SGT KNOTS Supply Co

    Twist Lock I-Beamer Carabiner | Pelican

    Pelican Rope
    $ 29.39 - $ 29.39
    $ 29.39
    $ 29.39 - $ 29.39
    $ 29.39

    The ProClimb® I-Beamer Big D Carabiner is a quintessential part of any fall protection system. It is better known for its larger gate opening, high...

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    $ 29.39 - $ 29.39
    $ 29.39
    $ 29.39 - $ 29.39
    $ 29.39
  • USR-128-A3TU Pelican Rope Carabiner

    Copperhead | Triple Locking Aluminum Carabiner | Pelican

    Pelican Rope
    $ 26.24 - $ 26.24
    $ 26.24
    $ 26.24 - $ 26.24
    $ 26.24

    Pelican's Copperhead carabiner is a triple locking carabiner designed to stay secure in situations you really need to know the gate is closed.  Tri...

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    $ 26.24 - $ 26.24
    $ 26.24
    $ 26.24 - $ 26.24
    $ 26.24
  • 111mm x 62mm / Orange Gray / Orbit Triple ARM-Orbit-TripleLock SGT KNOTS Climbing Gear 111mm x 62mm / Orange Gray / Orbit Triple ARM-Orbit-TripleLock ARMBURY Climbing Gear

    Armbury Orbit Carabiner Triple Lock

    ARMBURY
    $ 18.85 - $ 18.85
    $ 18.85
    $ 18.85 - $ 18.85
    $ 18.85

    ARMBURY Orbit Carabiners are an oval shape with catch-free noses for smoother clipping and unclipping.  The symmetrical structure is designed to be...

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    $ 18.85 - $ 18.85
    $ 18.85
    $ 18.85 - $ 18.85
    $ 18.85
  • Domes Triple / Gray Orange / 112mm x 75mm ARM-Domes-TripleLock SGT KNOTS Climbing Gear Domes Triple / Gray Orange / 112mm x 75mm ARM-Domes-TripleLock ARMBURY Climbing Gear

    ARMBURY Dome Triple Lock Gate Carabiner

    ARMBURY
    $ 18.85 - $ 18.85
    $ 18.85
    $ 18.85 - $ 18.85
    $ 18.85

    ARMBURY Heavy Duty Carabiner Large Dome Steel Carabiner for Climbing D Shape Carabiner Hook Gate Lock Caribiner Perfect for Rappelling,Rock Climbin...

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    $ 18.85 - $ 18.85
    $ 18.85
    $ 18.85 - $ 18.85
    $ 18.85
  • Titanium Green DMM-UD-Lock-TitaniumGreen ROPE SHOP Titanium Gold DMM-UD-Lock-ANSI-TitaniumGold ROPE SHOP

    DMM UltraD Carabiner

    DMM
    $ 18.85 - $ 33.55
    $ 18.85 - $ 33.55
    $ 18.85 - $ 33.55
    $ 18.85

    These classic D-shaped carabiners are built to increase strength-to-weight ratio while delivering a catch-free connection.  The aluminum is hot-fo...

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    $ 18.85 - $ 33.55
    $ 18.85 - $ 33.55
    $ 18.85 - $ 33.55
    $ 18.85
  • USR-127-A3TU Pelican Rope Carabiner USR-127-A3TU Pelican Rope Carabiner

    ProClimb Triple Lock True Oval Aluminum Carabiner Pelican

    Pelican Rope
    $ 19.94 - $ 19.94
    $ 19.94
    $ 19.94 - $ 19.94
    $ 19.94

    The ProClimb Triple Lock True Oval Aluminum Carabiner. • Aluminum Alloy • Anodized • Keylock • MBS ↔22 kN* ↕7 kN • WEIGHT: 2.9 oz  *22 kN (is e...

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    $ 19.94 - $ 19.94
    $ 19.94
    $ 19.94 - $ 19.94
    $ 19.94
  • USR-17-A3T9P Pelican Rope Carabiner USR-17-A3T9P Pelican Rope Carabiner

    ProClimb Triple Lock Oval I-Beamer Pelican

    Pelican Rope
    $ 29.40 - $ 29.40
    $ 29.40
    $ 29.40 - $ 29.40
    $ 29.40

    U.S. Rigging Supply's Triple Lock Oval I-Beamer is designed to quickly and securely connect and maintain connections when it matters most. Made of ...

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    $ 29.40 - $ 29.40
    $ 29.40
    $ 29.40 - $ 29.40
    $ 29.40
  • USR-17-AT9P Pelican Rope Carabiner USR-17-AT9P Pelican Rope Carabiner

    ProClimb Twist Lock Oval I-Beamer - Pelican

    Pelican Rope
    $ 29.40 - $ 29.40
    $ 29.40
    $ 29.40 - $ 29.40
    $ 29.40

    This Twist Lock Oval I-Beamer with offset gate from U.S. Rigging Supply's is designed to quickly and securely connect and maintain connections when...

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    $ 29.40 - $ 29.40
    $ 29.40
    $ 29.40 - $ 29.40
    $ 29.40
  • USR-19-A3T9 Pelican Rope Carabiner

    Triple Lock I-Beam Carabiner | Pelican

    Pelican Rope
    $ 29.39 - $ 29.39
    $ 29.39
    $ 29.39 - $ 29.39
    $ 29.39

    The ProClimb® I-Beamer Big D Carabiner is a quintessential part of any fall protection system. It is better known for its larger gate opening, high...

    View full details
    $ 29.39 - $ 29.39
    $ 29.39
    $ 29.39 - $ 29.39
    $ 29.39
  • DMM Carabiner BlueRedGreen / Screwgate DMM-UO-Screw-BlueRedGreen DMM Carabiner

    DMM UltraO Carabiner - 3 Pack

    DMM
    $ 48.25 - $ 76.60
    $ 48.25 - $ 76.60
    $ 48.25 - $ 76.60
    $ 48.25

    Standard carabiners are used across the world by professionals and novices.  The classic oval shape simplifies numerous connections while the round...

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    $ 48.25 - $ 76.60
    $ 48.25 - $ 76.60
    $ 48.25 - $ 76.60
    $ 48.25
  • KG-OVNE-TWISTLK-LWhite SGT KNOTS Arborist Gear

    KONG-OVALONE TWIST LOCK ANSI LUNAR WHITE

    KONG
    $ 31.49 - $ 31.49
    $ 31.49
    $ 31.49 - $ 31.49
    $ 31.49

    Oval carabiner carbon steel, wide-opening. High load of 40 KN. Ideal for heavy-duty Key features: The reinforced sleeve offers greater resistance ...

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    $ 31.49 - $ 31.49
    $ 31.49
    $ 31.49 - $ 31.49
    $ 31.49
  • 109mm x 58mm / Silver / O Screw ARM-OSteel-ScrewLock ARMBURY Climbing Gear 109mm x 58mm / Silver / O Triple ARM-OSteel-TripleLock ARMBURY Climbing Gear

    Armbury Steel Oval Triple Lock Gate Carabiner

    ARMBURY
    $ 15.70 - $ 15.70
    $ 15.70
    $ 15.70 - $ 15.70
    $ 15.70

    Armbury Oval Steel Carabiners have a zinc-plated finish which prevents rust from moist environments.  These are made with catch-free noses for smoo...

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    $ 15.70 - $ 15.70
    $ 15.70
    $ 15.70 - $ 15.70
    $ 15.70
  • 118mm x 76mm / Orange Gray / Hinge Twist ARM-Hinge-TwistLock ARMBURY Climbing Gear 118mm x 76mm / Orange Gray / Hinge Twist ARM-Hinge-TwistLock ARMBURY Climbing Gear

    Armbury Hing HMS Carabiner Twist Lock

    ARMBURY
    $ 18.85 - $ 18.85
    $ 18.85
    $ 18.85 - $ 18.85
    $ 18.85

    Armbury Hing HMS Carabiners are hot-forged alloy with catch-free noses for smoother clipping and unclipping. The circular shape of the basket makes...

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    $ 18.85 - $ 18.85
    $ 18.85
    $ 18.85 - $ 18.85
    $ 18.85
  • Tendon Hardware Tendon Hardware Sold out

    Tendon/Kong HMS Carabiner

    Tendon
    $ 28.34
    $ 28.34 - $ 28.34
    $ 28.34
    $ 9.45
    $ 9.45 - $ 9.45
    $ 9.45

    Aluminum connector with screw sleeve and Keylock system. The classic wide pear shape makes it suitable for use with a wide variety of ropes and hit...

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    $ 28.34
    $ 28.34 - $ 28.34
    $ 28.34
    $ 9.45
    $ 9.45 - $ 9.45
    $ 9.45
    Sold out
  • TEN-CB100SG020 KONG Sold out

    Kong Aluminum Carabiner - ScrewLock

    KONG
    $ 18.70
    $ 18.70 - $ 18.70
    $ 18.70
    $ 8.40
    $ 8.40 - $ 8.40
    $ 8.40

    Oval Aluminum Carabiner with Large Opening The wide symmetrical shape of this oval aluminum carabiner is designed to allow for better positioning...

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    $ 18.70
    $ 18.70 - $ 18.70
    $ 18.70
    $ 8.40
    $ 8.40 - $ 8.40
    $ 8.40
    Sold out
  • ARMBURY Climbing Gear 113mm x 72mm / Silver / D Screw ARM-DSteel-Screw ARMBURY Climbing Gear Sold out

    ARMBURY D-Shaped Steel Carabiner Screw Lock

    ARMBURY
    $ 14.65 - $ 14.65
    $ 14.65
    $ 14.65 - $ 14.65
    $ 14.65

    Armbury D-Shaped Steel Carabiners have a zinc-plated finish which prevents rust from moist environments.  These are made with catch-free noses for ...

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    $ 14.65 - $ 14.65
    $ 14.65
    $ 14.65 - $ 14.65
    $ 14.65
    Sold out

More About Locking Carabiners

Locking carabiners are a crucial tool for climbers looking to ensure their safety while ascending or belaying. Whether you’re a beginner or advanced climber, SGT KNOTS offers a wide selection of locking carabiner in various sizes and features for all your climbing needs, and always at unbeatable prices. Shop our selection of locking carabiners and Climbing Products for all of your climbing essentials!

What Are Locking Carabiners?

Most carabiners have an open gate, secured by a mechanical fitting and pressure applied via an internal spring. Ordinary carabiners can be opened by simply pressing on the gate arm. The reasoning behind the basic design is that for an accidental opening to occur, the carabiner gate arm would have to be pressed on from the outside. This is considered to be unlikely, plus, your climbing rope is usually only expected to apply outward pressure from within the loop. Therefore, ordinary, non-locking carabiners are considered safe for most applications.

A locking carabiner, by contrast, incorporates a metal sleeve that slides over the gate opening, making it impossible (or extremely unlikely) for the gate to open without the user intending it to open. The sleeve has to be unlocked or unscrewed before it can be maneuvered out of the locked position.

So, when might you need something like this? There are seven distinct instances that call for locking carabiners.

When to Use Locking Carabiners

1. For Belay

Any time there is a reasonable expectation that your rope may press on the gate from an unexpected direction, that is a reason for locking carabiners.

2. Belay from Above

When another is belaying above you, that is even more reason to use locking carabiners, since the consequences of failure are more severe.

3. Attaching to an Anchor

Any time you attach your line to an anchor, which you hope to be able to stop a fall by itself, then a locking carabiner is appropriate and recommended.

4. For Top-Rope Anchors

Most of the time when a carabiner is in danger of opening, you will be close to it, but not with top-rope carabiners.

5. As Bail Carabiners

Any time you have to abandon a route, it's best to use a locking carabiner for your last anchor on that route.

6. Critical Loads

Any load that you cannot afford to drop, (including yourself), should get a locking carabiner, and using steel carabiners is recommended.

7. Advanced Climbing Systems

Advanced climbers performing difficult or unorthodox maneuvers should use lockers almost exclusively.

Shop Today’s Best Locking Carabiners at SGT KNOTS

At SGT KNOTS, we have a great selection of locking carabiner types, sizes, and features for all of your secure climbing needs. Any of these products will perform well in a range of circumstances. Likewise, each is going to be ideal in specific types of situations. 

Check out our selection for the best value for your necessary climbing equipment! For even more tips and product recommendations, you’ll love the SGT KNOTS Blog. Need to brush up on your knot tying skills before your next climb? Our Knot Tutorials can help. Browse and shop today!