Having pitched the Big Boa as the ‘Big Daddy’ of lockers we must go one further with this beefed up, super strong biner. The 30kN Boa is the – yes, and you’ve guessed it – ‘Grandaddy’’ of lockers. It has impressive gate closed strength and is robust enough to cope with the toughest of rigging scenarios. And yet, because it has an I-Beam construction, it is still impressively light.
Major Axis: 30kN
Minor Axis: 12kN
Gate Open:9kN

The Durolock is DMM's most secure auto locking gate mechanism, for situations where accidental gate opening is not an option.

An evolution of the tried and tested Locksafe design, the addition of a free floating outer barrel introduces a fourth action to the gate opening process. This feature minimizes the chance of rollout, a vital consideration in complex rigging scenarios with moving ropes or for those working from a single attachment point.
Major Axis: 30kN
Minor Axis: 12kN

is is the ‘Big Daddy’ of lockers – the ultimate rigging biner and one which is super strong and super tough. It is large enough to accommodate several knots and has a very wide gate opening making it perfect in a rigging situation. It’s large shape makes this biner easy to handle in gloves and the appeal to winter climbers and riggers is obvious.
Major Axis: 25kN
Minor Axis: 10kN
Gate Open: 8kN

is is the ‘Big Daddy’ of lockers – the ultimate rigging biner and one which is super strong and super tough. It is large enough to accommodate several knots and has a very wide gate opening making it perfect in a rigging situation. It’s large shape makes this biner easy to handle in gloves and the appeal to winter climbers and riggers is obvious.
Major Axis: 25kN
Minor Axis: 10kN
Gate Open: 8kN

For extra security an anti-vibe (anti-vibration) screwgate is available with some carabiners. Originally developed for systems on helicopters, they also offer added assurance where attachment points may not be easily accessible.
Major Axis: 30kN

DMM have raised the bar on oval carabiners with their Ultra O range. A lot of people will see this as the ultimate carabiner for rigging and pulley systems and it has been designed to work perfectly with DMM’s Hitch Climber Pulley that is extremely popular with arborists.
Major Axis: 25kN
Minor Axis: 12kN
Gate Open: 7kN

DMM have raised the bar on oval carabiners with their Ultra O range. A lot of people will see this as the ultimate carabiner for rigging and pulley systems and it has been designed to work perfectly with DMM’s Hitch Climber Pulley that is extremely popular with arborists.
Major Axis: 25kN
Minor Axis: 12kN
Gate Open: 7kN

A piece of engineering beauty that offers a neat solution to a very real problem and danger. The plastic clip can only be locked into place when the gate has been tightened into the locked position. This acts as a double check that the biner is closed correctly and securely, and the plastic clip itself prevents the biner from being crossloaded in action.
Major Axis: 25kN
Minor Axis: 10kN
Gate Open: 8kN

After observing how sport climbers were modifying their belay biners with rubber bungs to prevent cross-loading with certain belay devices, DMM came up with a cleaner, simple, solution. The horn prevents pulleys, swivels and locking assisted belay devices rotating o the top bar and on to the spine reducing the risk of cross loading.
Major Axis: 27kN
Minor Axis: 9kN
Gate Open: 7kN

The Aero HMS has several features which raise it above the competition. For a start it’s hot forged – a process that allows us a much greater degree of freedom in the design and manufacturing process. A product of this very freedom is the anti snag Keylock nose. And then there is the extremely generous rope radius – a whopping 11.3mm!
Major Axis: 25kN
Minor Axis: 10kN
Gate Open: 8kN

The Kletersteig Carabiner is an offset D shape with I-beam construction for optimal strength to weight ratio. The Kletersteig boasts extra large internal volume and gate clearance making it a perfect biner for rigging and profession use.
Major Axis: 30kN
Minor Axis: 14kN
Gate Open: 10kN

The Ultra D is similar in size and weight to the Ultra O; however it is stronger and has a slightly bigger gate opening. The open D shape gives a lot of internal space within the biner, which makes it useful for setting up belays. It’s also finding favour as a perfect partner to a belay device.
Major Axis: 30kN
Minor Axis: 12kN
Gate Open: 9kN

The Sentinel is one of the lightest mini HMS locking carabiners on the market. It’s slightly off set design increases strength and directs heavy loads into the spine, the gently curved top bar with a generous rope radius that allows it to work well with both single and double rope controllers. A fantastic and versatile rigging biner that will take a couple of clove hitches.
Major Axis: 24kN
Minor Axis: 10kN
Gate Opening: 25mm

The Sentinel is one of the lightest mini HMS locking carabiners on the market. It’s slightly off set design increases strength and directs heavy loads into the spine, the gently curved top bar with a generous rope radius that allows it to work well with both single and double rope controllers. A fantastic and versatile rigging biner that will take a couple of clove hitches.
Major Axis: 24kN
Minor Axis: 10kN
Gate Opening: 25mm

A high performance, lightweight locking biner suitable for a wide range of uses, from trad climbing right through to winter climbing. Think of it as a bigger version of the Phantom. The extra gate opening and larger size make it easier to use if you are wearing gloves. And despite these advantages it still hangs lightly on your rack.
Major Axis: 24kN
Minor Axis: 9kN
Gate Open: 7kN

A high performance, lightweight locking biner suitable for a wide range of uses, from trad climbing right through to winter climbing. Think of it as a bigger version of the Phantom. The extra gate opening and larger size make it easier to use if you are wearing gloves. And despite these advantages it still hangs lightly on your rack.
Major Axis: 24kN
Minor Axis: 9kN
Gate Open: 7kN

A high performance, lightweight locking biner suitable for a wide range of uses, from trad climbing right through to winter climbing. Think of it as a bigger version of the Phantom. The extra gate opening and larger size make it easier to use if you are wearing gloves. And despite these advantages it still hangs lightly on your rack.
Major Axis: 24kN
Minor Axis: 9kN
Gate Open: 7kN

A good value, core offset D locking carabiner with taperlock nose that is the new standard for entry level screwgates. The very strong construction gives the Aero Screwgate 25kN major axis and 9kN gate open strengths. The minimum rope radius is 10mm and rises to 10.3mm on the main rope bearing surfaces.
Major Axis: 25kN
Minor Axis: 9kN
Gate Open: 9kN

Lighten up your rack with a few of these beauties. Weighing in at 42g this is one of the lightest keylock screwgate biner in the world. It is also is very functional and very strong with a major axis strength of 23kN and a gate open strength of 9kN.
Major Axis: 23kN
Minor Axis: 9kN
Gate Open: 9kN

Whichever way you look at it, the Revolver is a remarkable biner design. e pulley wheel is a unique design feature that solves the age old problem of rope drag. It also makes this biner a very useful tool for arborists and in rescue or emergency hauling situations when a pulley is required.
Major Axis: 24kN
Minor Axis: 8kN
Gate Open: 8kN

Whichever way you look at it, the Revolver is a remarkable biner design. e pulley wheel is a unique design feature that solves the age old problem of rope drag. It also makes this biner a very useful tool for arborists and in rescue or emergency hauling situations when a pulley is required.
Major Axis: 24kN
Minor Axis: 9kN
Gate Open: 10kN

Whichever way you look at it, the Revolver is a remarkable biner design. e pulley wheel is a unique design feature that solves the age old problem of rope drag. It also makes this biner a very useful tool for arborists and in rescue or emergency hauling situations when a pulley is required.
Major Axis: 24kN
Minor Axis: 7kN
Gate Open: 9kN

Rock Exotica model #C1 A. The perfect belay biner. Keylock non-snag design. High inward gate strength. The slightly offset gate for extra wide opening. Triple action auto-lock gate. Made in the USA. CE certified.

Colour: Orange
Long Axis Break Strength: 26 kN
Cross Gate Break Strength: 12 kN
Gate Open Break Strength: 7 kN
Gate Opening: 25.4 mm
Length: 107 mm
Width : 71 mm
Weight: 87 gm

Rock Exotica model #C1 S. The perfect belay biner. Keylock non-snag design. High inward gate strength. Slightly offset gate for extra wide opening. Screw-lock. Advanced users only. Made in the USA. CE certified.

Colour: Orange
Long Axis Break Strength: 26 kN
Cross Gate Break Strength: 12 kN
Gate Open Break Strength: 7 kN
Gate Opening: 25.4 mm
Length: 107 mm
Width : 71 mm
Weight: 80 gm

ROCK EXOTICA rockD Auto-Lock C2A (also available in black)

Weight: 2.85 oz (80 gm)
Breaking strength:
Major axis: 29 kN
Minor axis: 11 kN
Open gate: 9 kN
Inward against sleeve: 6 kN
Gate opening: .98" (24.9 mm)

ROCK EXOTICA rockD Non-Locker C2 NL (also available in black)

Weight: 2.36 oz (67 gm)
Breaking strength:
Major axis: 29 kN
Minor axis: 10 kN
Open gate: 9 kN
Gate opening: 1.0" (25.4 mm)

ROCK EXOTICA rockD ORCA lock C2 O (also available in black)

Weight: 2.85 oz (80 gm)
Breaking strength:
Major axis: 29 kN
Minor axis: 11 kN
Open gate: 9 kN
Gate opening: .96" (24 mm)
Height: 4.5" (114 mm)
Width: 2.7" (68 mm)

ROCK EXOTICA rockD Screwlock C2 S (available in black)

Weight: 2.61 oz (72 gm)
Breaking strength:
Major axis: 29 kN
Minor axis: 9 kN
Open gate: 9 kN
Gate opening: .96" (24 mm)
Height: 4.5" (114 mm)
Width: 2.7" (68 mm)

ROCK EXOTICA rockD auto-lock C3 A (available in black)

Weight: 2.85 oz (80 gm)
Breaking strength:
Major axis: 24 kN
Minor axis: 11 kN
Open gate: 6 kN
Gate opening: .92" (22 mm)
Height: 4.4" (111 mm)
Width: 2.5" (64 mm)
 

ROCK EXOTICA rockO ORCA-lock C3 O (available in black)

Weight: 2.85 oz (80 gm)
Breaking strength:
Major axis: 24 kN
Minor axis: 11 kN
Open gate: 6 kN
Gate opening: .93" (22 mm)
Height: 4.4" (111 mm)
Width: 2.5" (64 mm)

ROCK EXOTICA rockO Screwlock C3 S (available in black)

Weight: 2.61 oz (73 gm)
Breaking strength:
Major axis: 24 kN
Minor axis: 9 kN
Open gate: 6 kN
Gate opening: .93" (22 mm)
Height: 4.4" (111 mm)
Width: 2.5" (64 mm)

ROCK EXOTICA rockD BiWire C2 BW (available in black)

Weight: 2.40 oz (68 gm)
Breaking strength:
Major axis: 30 kN
Minor axis: 11 kN
Open gate: 9 kN
Gate opening: 1.1" (28 mm)
Height: 4.5" (114 mm)
Width: 2.7" (68 mm)

ROCK EXOTICA Pirate WireEye C1 WEA

Weight: 3.20 oz (91 gm)
Breaking strength:
Major axis: 26 kN
Minor axis: 12 kN
Open gate: 7 kN
Gate opening: 1.0" (25 mm)
Height: 4.2" (107 mm)
Width: 2.8" (71 mm)

ROCK EXOTICA SwivaBiner Auto-Lock C81 A

Weight: 5.90 oz (166 gm)
Breaking strength:
Major axis: 30 kN
Minor axis: 7 kN
Open gate: 12 kN
Gate opening: .84" (21 mm)
Height: 7.30" (185 mm)
Width: 2.60" (66 mm

ROCK EXOTICA SwivaBiner Screw-Lock
C81 S

Weight: 5.50 oz (153 gm)
Breaking strength:
Major axis: 30 kN
Minor axis: 7 kN
Open gate: 12 kN
Gate opening: .84" (21 mm)
Height: 7.30" (185 mm)
Width: 2.60" (66 mm)

ROCK EXOTICA SwivaEye Auto-Lock C82 A

Weight: 4.86 oz (137 gm)
Breaking strength:
Major axis: 30 kN
Minor axis: 7 kN
Open gate: 12 kN
Gate opening: .84" (21 mm)
Height: 5.40" (137 mm)
Width: 2.60" (66 mm)

ROCK EXOTICA SwivaEye Screw-Lock C82 S

Weight: 4.60 oz (130 gm)
Breaking strength:
Major axis: 30 kN
Minor axis: 7 kN
Open gate: 12 kN
Gate opening: .84" (21 mm)
Height: 5.40" (137 mm)
Width: 2.60" (66 mm)

PETZL MGO 60

Large connector with a wide gate opening designed for connecting to thick structures. Automatic locking directional connector with ergonomic unlocking handle. Available in two versions: MGO 60 (pictured) with 60 mm gate opening and MGO 110 (not pictured) with 110 mm gate opening.

Weight: 455 g
Breaking strength: 25 kN
Gate opening: 60 mm

PETZL OK Triact-Lock oval aluminium carabiner (available in black)

Versatile oval symnetric shape for optimal positioning of equipment. Ideal for hauling, the keylock system helps prevent snagging of the carabiner during maneuvers. Red indicator provides a visual warning when the carabiner is unlocked.

Weight: 75 g
Breaking strength
Major axis: 24 kN
Minor axis: 8 kN
Open gate: 7 kN
Gate opening: 19 mm

PETZL OK screw-lock Oval aluminium carabiner

Versatile oval symnetric shape for optimal positioning of equipment. Ideal for hauling, the keylock system helps prevent snagging of the carabiner during maneuvers. Red indicator provides a visual warning when the carabiner is unlocked.

Weight: 75 g
Breaking strength
Major axis: 24 kN
Minor axis: 10 kN
Open gate: 7 kN
Gate opening: 19 mm