Black Diamond Rocklock Screwgate Carabiner is the largest belay and rappel locker in the line, the Black Diamond RockLock carabiner features a keylock nose, is Munter Hitch compatible and can be operated with one hand.
Square hinge end holds belay loop securely in place
Slightly curved spine maximizes gate opening
Keylock nose prevents snagging
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Reviewed by 35 customers
No fumbling with gates. Very easy to use. Quickly opens and closes, letting you focus on your climb and partners.
I love this crab it is so simple to use and it's a smart design I will be getting more of these, it's definitely worth the price.
Because the default position of this carabiner is closed and locked, there is almost no way to assume it's locked when it isn't. This is especially nice when tired and/or in the dark. Also it may be easily opened with either hand. It is the first locking carabiner I've used in the 50+ years I've been climbing that seems idiot-proof.
Light weight and built with quality materials. Gate opens wide enough to fit around a rescue littler rail and multiple strands of 11mm cord.
I have used twist lock carabiners for years, and screw locks before that. The magnetic locks are great. Easy to open one handed; closes and locks automatically when you let go. It is also a good size; not too big, not too small. Until something better comes along, I will be using this for my rappel/belay needs.
These get a lot of heavy use from me and have held up beautifully.
This is one of the easiest to use locking carabiners on the market right now. It is as easy to open as any non locking carabiner, but just as safe if not safer than any locking carabiner. I have tried every way I can think of to bust it open with no luck. I admit that I was very skeptical at first and wanted to test it myself. The only application I wouldn't recommend it for is in winter with heavy gloves, it is hard to release. If you just have a light pair no problem though.
My main criteria for carabiners are that they give me no issues, and have a smooth feel to them -- set and forget it. This Rocklock checks off all the boxes for me, so it stays in the bag.
This is my favorite big pear biner. Have several of both twistlock and screwlock. Have used them for anchors, rappels, ascends. Can also make a great handle with a 3 - 1 haul when attached to a friction knot to help pull on a wet rope. Recently, while rappelling a waterfall, it began to rain, things got a little extreme. On the ascend out, had 2 different brands of tri-lock biners stick open because of fine sand and water. 4 of us had to avoid those and use twistlocks. They would self-clean if we just snapped the gates a few times, and they never stuck open. Gate spring also seems stronger then some brands. May not be the prettiest or most expensive biner, but they worked when others were sticking. Serious mud, sand, water, rain, didn't keep them from their job - to snap shut, every time. Thanks BD, well thought out piece of gear.
I use it for my belay device and just give a squeeze check and then forget about it. Also for anchors. Screwgates can creep, the autolock doesn't. Last until I wear through the metal on the biner due to a ton of use. Solid.