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Double-Locking Carabiners
Carabiners which are to be used to support a tree climbiner must be “self-closing and self-double-locking”, which means that it requires 3 motions to open the gate and that the carabiner will auto-close and auto-lock when the gate is released. These three motions usually consist of pushing the carabiner sleeve up or down, twisting the sleeve, and finally, pulling the gate inward. Some carabiners replace the first step with the pressing of a button. Life support carabiners must also have a breaking strength of at least 5,000 lb. WesSpur stocks a wide variety of carabiners that meet his standard for you to choose from.
For more on safety guidelines for tree climbing and tree work, check out the ANSI Z133 Safety Dtandard for Arboricultural Operations.
Rock Exotica Pirate
| Brk Str | 5,845 lb (26 kN) |
| Height | 4.2” |
| Width | 2.75” |
| Weight | 3.09 oz |
| Gate | 1” (key lock) |
Rock Exotica’s popular Pirate carabiner is an excellent positive locking carabiner with a handy HMS shape that makes it great for attaching to figure eights, flipline adjusters, or other hardware, and metal sleeve with a pull-down action to open the gate. The precision manufacturing, excellent design, and high strength of this carabiner make it a great choice for a wide variety of tree climbing applications, which is why you’ll find the Pirate in WesSpur’s tree climbing starter kits and flipline kits. Made in the U.S.A.
Rock D Carabiner
| Brk Str | 6,525 lb (29 kN) |
| Height | 4.5” |
| Width | 2.5” |
| Weight | 2.85 oz |
| Gate | .98” (key lock) |
Rock Exotica’s standard D carabiner has a pull-down, metal gate with great action that opens slightly turned from the main axis for a wider opening (1”) than on other D carabiners. Made in the U.S.A.
Rock O
| Brk Str | 5,400 lb (24 kN) |
| Height | 4.375” |
| Width | 2.5” |
| Weight | 2.85 oz |
| Gate | .93” (key lock) |
Rock O is a classic oval shape with a metal, pull-down gate. Made in the U.S.A.
Rock D Stainless
| Brk Str | 10,125 lb (45 kN) |
| Height | 4.5” |
| Width | 2.5” |
| Weight | 7.68 oz |
| Gate | 1” (key lock) |
Rock Exotica’s standard D carabiner has a pull-down, metal gate with great action that opens slightly turned from the main axis for a wider opening (1”) than on other D carabiners. Stainless steel is high-strength & rust-proof. Made in the U.S.A.
Rock Exotica Pirate WireEye Carabiner
| Brk Str | 5,845 lb (26 kN) |
| Height | 4.2” |
| Width | 2.75” |
| Weight | 3.20 oz |
| Gate | 1” (key lock) |
Rock Exotica’s popular Pirate carabiner just got better! The same great properties of the Rock Exotica Pirate carabiner, now available with a WireEye wire keeper to keep your rope or belay loop where it belongs. Made in the U.S.A.
RockO WireEye Carabiner New in 2013!
| Brk Str | 5,400 lb (24 kN) |
| Height | 4.375” |
| Width | 2.5” |
| Weight | 2.85 oz |
| Gate | .93” (key lock) |
Rock Exotica’s oval carabiner just got an upgrade! The same great properties of the Rock Exotica RockO carabiner (shown below) is now available with a WireEye wire keeper to keep your rope or belay loop where it belongs. Made in the U.S.A.
Rock Exotica Pirate ORCA Lock
| Brk Str | 5,845 lb (27 kN) |
| Height | 4.2” |
| Width | 2.75” |
| Weight | 3.12 oz |
| Gate | 1” (key lock) |
For advanced users only!
The popular Pirate carabiner with the new ORCA locking gate.
The new ORCA (Open Regular Close Auto) Locking System deploys with the ease and quickness of a non-locker and shuts with the security of an autolock. The ORCA is a unique autolock sleeve/gate that can be set in the unlocked position. With the gate in the “set” position it is ready to function like a non-locker but the act of opening the gate "triggers" it and when the gate closes, it will autolock just like a regular autolocking carabiner. Ideal for aerial rescue, complex haul systems, etc.
Rock D Carabiner ORCA Lock
| Brk Str | 6,525 lb (29 kN) |
| Height | 4.5” |
| Width | 2.5” |
| Weight | 2.85 oz |
| Gate | .98” (key lock) |
Rock Exotica “Orca Lock”’s standard D carabiner opens slightly turned from the main axis for a wider opening (1”) than on other D carabiners.
The new ORCA (Open Regular Close Auto) Locking System deploys with the ease and quickness of a non-locker and shuts with the security of an autolock. The ORCA is a unique autolock sleeve/gate that can be set in the unlocked position. With the gate in the “set” position it is ready to function like a non-locker but the act of opening the gate "triggers" it and when the gate closes, it will autolock just like a regular autolocking carabiner. Ideal for aerial rescue, complex haul systems, etc.
Rock O ORCA Lock
| Brk Str | 5,625 lb (25 kN) |
| Height | 4.375” |
| Width | 2.5” |
| Weight | 2.85 oz |
| Gate | .93” (key lock) |
Rock O is a classic oval shape with the new ORCA lock.
The new ORCA (Open Regular Close Auto) Locking System deploys with the ease and quickness of a non-locker and shuts with the security of an autolock. The ORCA is a unique autolock sleeve/gate that can be set in the unlocked position. With the gate in the “set” position it is ready to function like a non-locker but the act of opening the gate "triggers" it and when the gate closes, it will autolock just like a regular autolocking carabiner. Ideal for aerial rescue, complex haul systems, etc.
SwivaBiner Auto-Lock
| Brk Str | 6,750 lb (30 kN) |
| Height | 7.25” |
| Width | 2.5” |
| Weight | .5.9 oz |
| Gate | .85” (key lock) |
The SwivaBiner is a positive-locking carabiner on a built-in swivel with a second positive-locking carabiner on the lower half. Eliminates line twisting. Made in the U.S.A.
SwivaEye Auto-Lock Carabiner Name
| Brk Str | 6,750 lb (30 kN) |
| Height | 5.4” |
| Width | 2.3” |
| Weight | 4.85 oz |
| Gate | .85” (key lock) |
Swiva-Eye on short back order - Expected to ship 8/10/11
SwivaEye is a compact auto-locking carabiner on a swivel eye to eliminate twisting lines. Perfect for your connection to your climbing line. Made in the U.S.A.
SMC Triguard Steel Positive-Locking Carabiner
| Brk Str | 10,125 lb (45 kN) |
| Height | 4.5” |
| Width | 2.75” |
| Weight | 7 oz |
| Gate | .9” (pin lock) |
Popular, lite alloy steel positive-locking carabiner. Stainless steel gate and sleeve. Opens easily with downward pull on the gate. Made in the U.S.A.
SMC ANSI Safety Lock
| Brk Str | 10,340 lb (46kN) |
| Height | 5” |
| Width | 3” |
| Weight | 11.5 oz |
| Gate | 1.2” (pin lock) |
This carabiner features an ANSI Z359.1 compliant gate break strength of 16kN to meet all your OSHA compliance issues. Made in the U.S.A.
SMC Crossover Triple Lock
| Brk Str | 8,990 lb (40kN) |
| Height | 5.5” |
| Width | 3.35” |
| Weight | 5 oz |
| Gate | 1” (key lock) |
This lightweight carabiner from SMC is the first carabiner to meet both NFPA G-1983, and ANSI Z359.1 requirements. The Crossover also meets the Z133 guidelines for tree work. This is the ultimate carabiner for work at heights, with high strength at all angles, while still being lightweight aluminum. A large gate opening, precision crafting, and individual testing makes this a great carabiner. SMC assures that all carabiners are 100% visually and physically inspected. Made in the U.S.A.
Petzl D Carabiner Ball-Lock Gate (M18)
| Brk Str | 6,300 lb (28 kN) |
| Height | 4.25” |
| Width | 2.5” |
| Weight | 2.6 oz |
| Gate | .75” (key lock) |
The Petzl D Carabiner is one of our most popular. Compact shape, excellent action, key-lock gate and a high breaking strength make this a good choice. Available with ball-lock or tri-action metal gates. Rated at 6,300 lb. (28 kN).
Petzl D Carabiner with Tri-Act Gate (M21)
| Brk Str | 6,300 lb (28 kN) |
| Height | 4.25” |
| Width | 2.5” |
| Weight | 2.6 oz |
| Gate | .75” (key lock) |
The Petzl D Carabiner is one of our most popular. Compact shape, excellent action, key-lock gate and a high breaking strength make this a good choice. Rated at 6,300 lb. (28 kN).
Petzl OK Tri-Act
| Brk Str | 5,400 lb (24 kN) |
| Height | 4.25” |
| Width | 2.5” |
| Weight | 2.6 oz |
| Gate | .75” (key lock) |
The Petzl OK carabiner is oval shaped and compact. Tri-Act, key lock gate. Rated at 5,400 lb. (24 kN).
Petzl William Carabiner Ball-Lock
| Brk Str | 5,625 lb (25 kN) |
| Height | 4.75” |
| Width | 3.25” |
| Weight | 3.1 oz |
| Gate | 1” (key lock) |
This carabiner offers a wider opening for accepting more rope, hardware, or just making it easier to clip in. A smooth locking carabiner with key lock gate. Rated at 5,625 lb. (25 kN).
Petzl William Carabiner Tri-Act Gate
| Brk Str | 5,625 lb (25 kN) |
| Height | 4.75” |
| Width | 3.25” |
| Weight | 3.1 oz |
| Gate | 1” (key lock) |
This carabiner offers a wider opening for accepting more rope, hardware, or just making it easier to clip in. A smooth locking carabiner with key lock gate. Rated at 5,625 lb. (25 kN).
Petzl Omni Tri-Act Carabiner
| Brk Str | 4,950 lb (22 kN) |
| Height | 3.875” |
| Width | 2.75” |
| Weight | 3 oz |
| Gate | 7/8” (key lock) |
This carabiner maintains 15 kN (3375 lb.) strength in all directions and has a 22 kN (4950 lb.) strength along it's main axis. Used to close any harness having two attachment points that must be joined with a connector. Designed to be loaded on its three axes. Key lock System (snag-free body/gate interface). Omni carabiner with screw lock gate is also available.
Petzl Vulcan Carabiner
| Brk Str | 9,000 lb (40 kN) |
| Height | 4.25” |
| Width | 3” |
| Weight | 10 oz |
| Gate | 1.2” (key lock) |
High-strength, steel carabiner with tri-action gate. Rated at 9,000 lb. (40 kN).
Petzl Oxan Carabiner
| Brk Str | 6,750 lb (30 kN) |
| Height | 4.25” |
| Width | 2.5” |
| Weight | 7.5 oz |
| Gate | .75” (key lock) |
Symmetrical steel carabiner with tri-action gate. Rated at 6,750 lb. (27 kN).
Omega Pacific “Jake” Swing Gate Positive-Locking Carabiner
| Brk Str | 5,175 lb (23 kN) |
| Height | 4.5” |
| Width | 3.15” |
| Weight | 3.8 oz |
| Gate | .9” (pin lock) |
Extra wide opening swing gate makes it super easy to clip this carabiner onto all kinds of connections. This carabiner is individually tested for smooth action, strength, and high performance. Made in the U.S.A.
Omega Pacific NFPA 3-Stage D Positive-Locking Carabiner
| Brk Str | 6,750 lb (30 kN) |
| Height | 4.5” |
| Width | 2.75” |
| Weight | 4 oz |
| Gate | .8” (pin lock) |
This carabiner is built to NFPA standards. It features a very high breaking strength and a pull-down gate which is easier to open with one hand than normal carabiner gates. Made in the U.S.A.
DMM Shadow Auto-Locking Carabiner
| Brk Str | 5,400 lb (24kN) |
| Height | 4” |
| Width | 2.5” |
| Weight | 2 oz (58g) |
| Gate | 0.7” (key lock) |
This auto-locking carabiner from DMM is lightweight, high-performance, strong, and versatile. Innovative construction keeps this carabiner light and easy to use even when wearing gloves.
DMM Item #A307
DMM Ultra O Locksafe Carabiner
| Brk Str | 5,625 lb (25kN) |
| Height | 4.25” |
| Width | 2.5” |
| Weight | 2.2 oz (61g) |
| Gate | 0.9” (key lock) |
DMM's Ultra-O Locksafe Carabiner could easily be described as the perfect aid climbing carabiner. The I-Beam construction makes this carabiner lightweight and strong, and the symmetrical oval shape keeps carabiners from shifting under load. Ideal for pulley systems and aid climbing.
DMM Item #A327
DMM Aero HMS Locksafe Positive-Locking Carabiner
| Brk Str | 5,625 lb (25kN) |
| Height | 4.5” |
| Width | 2.7” |
| Weight | 3.2 oz (91g) |
| Gate | 0.7” (key lock) |
The DMM Aero HMS Locksafe carabiner boasts a great resistance to wear and excellent heat dissipation. Features an anti-snag keylock nose, deep gate bend for easy rope clipping, and a generous 11.3mm rope radius capacity.
DMM Item #A367
DMM ‘BOA’ Bent Pear Positive-Locking Carabiner
| Brk Str | 5,625 lb (25 kN) |
| Height | 4.75” |
| Width | 3.125” |
| Weight | 3.4 oz |
| Gate | .9” (key lock) |
New version of this popular positive-locking carabiner.
DMM Revolver Positive-Locking Carabiner
| Brk Str | 5,400 lb (24 kN) |
| Height | 4” |
| Width | 2.25” |
| Weight | 2 oz |
| Gate | 1” |
The Revolver is a popular carabiner with a built-in pulley to reduce rope drag by up to 40%. This is a great carabiner for redirects, rescue, and haul systems.
DMM Zinc-Plated Steel D Positive-Locking Carabiner
| Brk Str | 10,125 lb (45 kN) |
| Height | 4.5” |
| Width | 3” |
| Weight | 10 oz |
| Gate | .75” (pin lock) |
High-strength positive-locking steel carabiner is zinc-plated to resist corrosion and weathering. Popular carabiner.
DMM Zinc-Plated Steel HMS Positive-Locking Carabiner
| Brk Str | 9,000 lb (40 kN) |
| Height | 4.5” |
| Width | 3” |
| Weight | 10 oz |
| Gate | .75” (pin lock) |
HMS steel carabiner is high-strength and zinc-plated to resist rust & corrosion..
Compact Steel D Positive-Locking Carabiner
| Brk Str | 11,250 lb (50 kN) |
| Height | 4.5” |
| Width | 3.25” |
| Weight | 10 oz |
| Gate | .75” (key lock) |
This popular item is compact and high-strength at a great price.
DMM Zinc-Plated Captive Eye Positive-Locking Carabiner
| Brk Str | 10,125 lb (45 kN) |
| Height | 4.5” |
| Width | 3” |
| Weight | 10 oz |
| Gate | .75” (pin lock) |
High-strength, captive eye carabiner with zinc-plating to resist rust and corrosion.
Big Dan Steel Tri Lock Carabiner
| Brk Str | 6,070 lb (27 kN) |
| Height | 5.25” |
| Width | 3.6” |
| Weight | 11 oz |
| Gate | 1.06” (key lock) |
High-quality steel Supersafe tri lock carabiner from ISC.
Kong HMS Positive-Locking Carabiner
| Brk Str | 4,950 lb (22 kN) |
| Height | 4.5” |
| Width | 3” |
| Weight | 3 oz |
| Gate | 1.1” (key lock) |
Kong HMS carabiner is a great shape of r use with figure 8s or other hardware. Plastic gate has a knobby texture that is easy to open with one hand.
Kong Rescue Carabiner
| Brk Str | 6,750 lb (30 kN) |
| Height | 4.5” |
| Width | 3” |
| Weight | 3 oz |
| Gate | 1.1” (key lock) |
Large, asymmetrical D carabiner with plastic sleeve on the gate.
Climb Right Large Modified D Carabiner
| Brk Str | 5,850 lb (26 kN) |
| Height | 4.75” |
| Width | 3” |
| Weight | 3 oz |
| Gate | .875” (key lock) |
Triple locking aluminum carabiner with a metal sleeve gate. Wide opening for easy attachment onto D rings.
Climb Right HMS Carabiner
| Brk Str | 5,625 lb (25 kN) |
| Height | 4.75” |
| Width | 3.5” |
| Weight | 3 oz |
| Gate | 1” (key lock) |
HMS pear carabiner has metal triple-action gate that snaps closed quickly. Wider top end allows easier attachment and bent pear shape is great for attaching to figure 8s.
Climb Right Captive Eye Carabiner
| Brk Str | 5,625 lb (25 kN) |
| Height | 5.25” |
| Width | 3” |
| Weight | 4 oz |
| Gate | .875” (key lock) |
Captive eye carabiner has a metal gate and a captive eye large enough to accept 1/2” rope. This pear shaped carabiner features a groove in the top inside corner of the carabiner to make sure hardware is positioned correctly every time.
Climb Right Swivel Eye Carabiner
| Brk Str | 6,750 lb (30 kN) |
| Height | 8” |
| Width | 2.75” |
| Weight | 5 oz |
| Gate | .75” (key lock) |
Features a groove to keep rope properly aligned and a swivel for easy positioning while in use.