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  • Black Diamond - RockLock Screwgate Carabiner - One Color

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  • Black Diamond - RockLock Screwgate Carabiner - One Color

Black Diamond RockLock Screwgate Carabiner


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    • One Color, Screwgate

    48 Reviews


    BD's Biggest.

    The RockLock Screwgate Carabiner is Black Diamond's biggest biner for belaying, top rope anchors, and long-lasting durability in the climbing world. Black Diamond 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.

    • Screwgate locking carabiner
    • Snag-free keylock nose
    • Item #BLD00HF

    Tech Specs

    Gate Type
    screw lock
    keylock nose
    Major Axis Strength
    24 kN
    Minor Axis Strength
    7 kN
    Open Gate Strength
    7 kN
    Gate Opening
    21 mm
    Claimed Weight
    3 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

    This is an easy biner to use, plus it's at a great pricepoint. I've bought more than I'll ever need and definitely use them for casual things around the campsite in addition to building anchors or belaying.

    Great biner!

    • Familiarity: I've put it through the wringer

    A solid biner for all your climbing needs. Love using this for building anchors for TR. Nothing to complain about. Its a nice large, functional biner.

    Gets it done!

    • Familiarity: I've used it once or twice and have initial impressions

    While relatively new to climbing and still building my arsenal of gear, I love this biner. I'm a fan of the size and versatility of this thing. I'll definitely be buying more of these in the future.


    • Familiarity: I've put it through the wringer

    I've bought them before and I'll buy them again. This is a great biner for most anything! They are round enough to make an easier time for multipitch belaying as well as perfect for a regular belay device carabiner or burly enough to rely on for anchors! They're great for anything and hard to wear out. 10/10

    Big boy with a lock

    • Familiarity: I've put it through the wringer

    I got a few for boating applications as the screw gate is a necessity in whitewater. They work great to hold down an ammo can or in a z-drag.

    Great value

    • Familiarity: I've put it through the wringer

    I have quite a few of these because they are durable and affordable. I use them as my go to for setting up top rope for climbing, rappels for canyoneering, belay devices and other odds and ends with my activities. You definitely can't wrong with these and for the price you can bulk up your supplies.

    Burly for belaying and anchor building

    • Familiarity: I've put it through the wringer

    My favorite biner for belaying or for toprope- the large diameter of the metal ensures smooth rope movement with less drag. Two of these make an excellent top rope setup attached to the anchor. Not the best for trad, as they are a little heavy. I prefer the Petzl Attache or other similar lightweight locker. But for single pitch sport, top rope, or gym climbing, this is my favorite.

    Best Belay Biner

    • Familiarity: I've put it through the wringer

    This carabiner compliments any ATC so well. They are big and durable which allows them to outlast much rope drag. I also really like how they are round, smooth, and easy with the rope. It is reassuring to know that when there is a lot of tension on the rope held by the carabiner that it is not harming the rope in any way. I have one of these for every ATC that I have and I have not had any regrets.

    It works.. but I hate the screwgate

    • Familiarity: I've used it several times

    The biner itself is sturdy and large, but the screw motion of the gate feels cheap and poor. If you've touched a screw gate on a Petzyl, they feel great--tight, smooth, clean, and secure. The Rocklock feels cheap and inaccurate and displeasurable. I'd recommend the Petzl Attache or Wiliams Locker over this one. Still a great locker that will do the job, though. But I won't be buying more.

    Great Gear

    • Familiarity: I've put it through the wringer

    Like everything Black Diamond produces, their climbing hardware is among the very best. Reliable and durable in the coldest of cold climates. BD is my go-to for hardgood gear!