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  • Black Diamond - RockLock Twistlock Carabiner -

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  • Black Diamond - RockLock Twistlock Carabiner -

Black Diamond RockLock Twistlock Carabiner

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14 Reviews


More security to the senders.

Black Diamond's RockLock Twistlock Carabiner automatically locks after you set the belay for your climbing partner. That means no more looking down and noticing an unlocked gate after you told your partner to climb on. Black Diamond also designed this locker with a keylock nose for snag-free unclipping, a curved spine for a larger gate opening, and a square hinge to hold your belay device in place.
  • Twistlock carabiner
  • Snag-free keylock nose
  • Item #BLD00HG

Tech Specs

Gate Type
keylock nose
Major Axis Strength
24 kN
Minor Axis Strength
7 kN
Open Gate Strength
7 kN
Gate Opening
21 mm
Claimed Weight
3.1 oz
Recommended Use
Manufacturer Warranty
1 year

Tech Specs

  • Reviews
  • Q & A

What do you think about this product?

Have questions about this product?

my go-to

  • Familiarity: I've put it through the wringer

I'm a huge fan of twistlock carabiners, especially for belaying and going in direct with my PAS. I have 3 of these now, and they're my go-to every time. The two-stage locking mechanism is really intuitive (I personally hate three-stage lockers with a passion). If you're not opposed to a twistlock, this is the perfect one to get multiples of.

Easy To Cross Load When Belaying

  • Familiarity: I've put it through the wringer

This is a great all around auto locking carabiner; however, it has a tendency to move around and cross load when belaying with an ATC.

Great Biner!

  • Familiarity: I've put it through the wringer

Love the twistlock feature. Very easy to use once you get used to it. I use this indoors and outdoors as my primary locking biner for belay. I always double check that it is locked, but haven't had an instance where it wasn't yet. Another great BD product!

Love the TwistLock

  • Familiarity: I've put it through the wringer

BD nails it again with this sleek, easy to use TwistLock carabiner. If you're debating between a screwgate and a twistlock gate, I strongly suggest the twistlock. It's so easy and is really safe - it takes a bit of effort to actually twist it, so it's not something that you can mess up while belaying (those were my beginning climbing partners initial concerns).

I highly recommend.

Great biner!

    The Black Diamond Rocklock Twistlock automatically locks which provides great piece of mind when belaying or rappelling. As with other BD climbing products, it's solid and ready for daily (ab)use.

    Favorite Belay / Rap Biner

    • Familiarity: I've put it through the wringer

    I swear by the RockLock Twistlock biners for belaying and rappelling. They're a great size, and very intuitive to unlock and open with one hand (after a little practice).

    Black Diamond Rocklock Twistlock

    • Familiarity: I've put it through the wringer

    The automatic locking system is a pretty sweet feature, helps get in and out of your carabiner that much easier. You should always check to make sure its locked but for me it provides much more comfort knowing that it will automatically lock. I use this product indoors and outdoors a minimum of 3 times a week and I love it! I highly recommend.

    My favorite twistlock 'biner.

    • Familiarity: I've put it through the wringer

    I don't even mess around with other brands or models of twistlock carabiners anymore. The locking feature on this is silky smooth and substantial, and it's wonderful to have (mostly*) clip-and-go security when you use these for personal anchor systems and belay devices (*I say "mostly" because you ought to always check and double check that your carabiners are locked when belaying, rappelling, or setting up a personal anchor system, but the immediate locking feature of the twistlock offers some peace of mind!).