If you are looking to buy an American-made Stainless Steel Carabiner then you need look no further. SMC-s Stainless Steel Large Locking D Carabiner is manufactured in the same size and shape as our best selling Large Steel Carabiner. When the working environment results in exposure to corrosive elements, and a larger gate opening and higher breaking strength are necessary, the SMC Large Stainless Steel Locking D is the correct choice.

Heat-treated Large Steel Locking D was created to address the need for a very strong steel carabiner without adding unnecessary weight and size. Built to the same specifications as the standard SMC Large Locking Steel Carabiner and certified by Underwriters Laboratories to meet NFPA -G- General Use standards but with an additional step of heat-treatment in order to provide an incredible 30% greater strength.

This is one of SMC-s best selling steel carabiners. The Large Steel Locking D was developed especially for the needs of the fire and rescue communities with a large gate opening that easily fits over litter rails. The NFPA21001 & NFPA21007 are the models that are stamped with the requisite UL Certification.

Lite Alloy Steel Locking D

The Large Aluminum Locking D is identical in size to our very popular Large Steel Rescue Carabiner except for the fact that it is constructed entirely of aluminum rather than steel. Light in weight, this is a great multipurpose carabiner and an ideal choice for situations such as are found in mountain rescue, where weight is a concern and carabiner volume and strength are equally critical.

Larger HMS carabiner with an integrated spring bar to prevent it from twisting and a particularly large closure system. Ideal for canyoning and industrial use.

This super-robust, steel HMS carabiner is virtually immune to wear associated with belaying with tubers, brakingassist tubers and top rope rigging.

A convenient three-pack of our classic keylock locking carabiner for smooth clipping and cleaning.

The symmetrical aluminum OK carabiner has an oval shape that allows optimal positioning of equipment with a wide section. Its Keylock system facilitates manipulations. The OK carabiner is available in two locking systems: manual SCREW-LOCK system or automatic TRIACT-LOCK system

The first ever HMS carabiner with two independent, automatic locking mechanisms. We have combined our tried-and-tested slide-gate with a new spring bar mechanism to make the super-safe SafeLock HMS carabiner.

The combination of our HMS Strike Slider with the Strike FG. Ideal for use with all types of belay device.

Innovative HMS carabiner with automatic locking mechanism.

The SMC Kinetic Series has been specifically designed for users who require only the best equipment possible, available in NFPA Certified for Work and Rescue environments.

The SMC NFPA Locking D Series carabiner is a true representation of timeless quality and attention to detail. As one of the most versatile mid-sized locking carabiners on the market you will find that form and function are unsurpassed. The enduring design of the SMC Locking D has become a standard in rock climbing, mountaineering and rescue applications as well as in ever increasing industrial applications due to its high strength, light weight, wide gate opening and overall functional versatility.

The SMC Kinetic Series has been specifically designed for users who require only the best equipment possible, available in NFPA Certified for Work and Rescue environments and Non-NFPA for Mountaineering and Sport environments.

Asymmetrical large capacity aluminum carabiner
The WILLIAM asymmetrical large capacity aluminum carabiner has a pear shape that is practical for easily connecting multiple items. Its fluid interior design and Keylock system facilitate manipulations. The WILLIAM carabiner is available in three locking systems: SCREW-LOCK manual system or TRIACT-LOCK and BALL-LOCK automatic systems.

Pure carabiner with a locking slide gate - ideal for traverses or wandering routes.

Black Diamond's largest belay and rappel locker, the RockLock carabiner features a keylock, is Munter Hitch compatible and can be operated with one hand.

Compact, ultra-lightweight screw-lock carabiner

The SPIRIT SCREW-LOCK is based on the SPIRIT carabiner and uses Petzl's manual screw-lock locking system. This carabiner is designed for specific applications, for example for use at belay stations. It is very compact, and has an H cross section to reduce weight, as well as the Keylock system to avoid the carabiner snagging during maneuvers.

XL Steel Twist Lock

Lightweight, compact, pear-shaped screw-lock carabiner

Thanks to its compact shape and SCREW-LOCK locking system, the ATTACHE is designed for multiple uses related to belaying: connecting a belay system to a harness, belaying with a Munter hitch... It has an H cross section to reduce weight, as well as the Keylock system to avoid the carabiner snagging during maneuvers.

Asymmetrical aluminum carabiner

The asymmetrical aluminum Am'D carabiner 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 manipulations. The Am-D carabiner is available in three locking systems: SCREW-LOCK manual system or TRIACT-LOCK and BALL-LOCK automatic systems.

Very compact and lightweight HMS carabiner. Ideal for alpine climbing

XL Steel Twist Lock

XL Steel Twist Lock

An ultralight, pear-shaped locking biner that’s ideal for long free climbs and slimming your rack, the VaporLock Screwgate strikes the perfect balance between weight savings and function.

Mad Rock has done it again. The Hulk has evolved into an automatic locking system providing a quick safety check. Resistant to accidental opening when locked. Unique key-lock gate uses a key-shaped nose on a carabiner for a snag-free closure.

The Ultra-Tech HMS Triple Lock carabiner is a great match for your belay device. This triple action auto-lock carabiner also features the forged I-beam construction and a snag proof keyless nose.

A versatile, all-purpose locking biner, the Mini Pearabiner features a small, yet rope-friendly shape and a keylock screwgate closure

The Hulk HMS Twist is a hot forged construction which allows for reduced weight while maintaining one of the highest breaking load capacities in the world. A smooth and large radius ensures high performance and the key-lock nose allows for quicker and snag-free operation. Easy to use, even when wearing gloves. Twist lock system can be opened and closed easily with one hand. Resistant to accidental opening when locked.

Carabiner,Oval D, Locking Double action, Steel 50kn

Hot-forged keylock screwgate locker for secure and easy clipping and cleaning

Smooth, silky, and now in Matte Black!
The Hulk HMS Matte Black is one of a kind! The hot forged construction of the Hulk HMS allows for reduced weight while maintaining one of the highest breaking load capacities.

Small screw gate carabiner for all vertical activity. Ideal for use with a belay device or for stances.

This twist lock carabiner also features the forged I-beam construction and no snag gate.

The Mad Rock-HMS carabiner is a great match for your belay device. This screw lock carabiner also features the forged I-beam construction and no snag key lock gate.

Black Diamond's largest locking carabiner, the RockLock is perfect for belaying, rappelling or anchors.

Carabiner, Oval, Locking Double action, Steel 26kn

Ovals screws are great carabiners to have in your arsenal. It can be used from anchors to protection. Key lock nose makes sure it is snag free! Stay oval my friend.

This screw lock carabiner also features the forged I-beam construction and no snag gate!

An easy to clip and clean keylock locker.

New Lighter Keylock