Dmm Belay Master 2 Carabiner - Screwgate

Priced: $17.95 - $20.95 Rated:   - 5 stars out of 5 by 8 reviews.
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Dmm Belay Master 2 Carabiner - Screwgate -

Belay carabiners don’t always behave as you might want them to. There is potential for the biner to flip into a bad alignment and for cross loading to occur. With this in mind DMM came up with a special clip that once locked in position prevents cross loading occurring by holding the biner and belay device in the correct alignment. There is another advantage too: the clip can only be locked if the Screwgate has been properly closed first. DMM has given the Belay Master 2 Screw Gate Carabiner a Taper Lock nose, a special flared profile on the nose of the biner which significantly increases the side loading strength of the gate. The belay Master 2 is also surprisingly light. So there you have it, one of the safest belay biners ever made and a fool proof set up that has proved very popular with climbing walls and outdoor centers.


  • Strong and light I-Beam construction


  • Taper Lock nose for greater gate strength in all directions
  • Super safe belay biner
  • Plastic clip prevents cross loading
  • Available with Screwgate locking system (Spring 2014)
Take safety to a new level with the DMM Belay Master 2 Keylock Screw Gate Belay Device. With a plastic gate clip, the Belay Master 2 helps ensure fail-safe closure. This clip also serves the dual purpose of preventing the carabiner from rotating in the belay system, so by the time you’re done setting up the belay, the only safety feature you’ll be missing will be an airbag.

Mountain Gear
Lock yourself into the climb with added confidence and control with DMM's Belay Master 2 locking carabiner, an innovative device that uses a plastic clip across the gate for a fail-safe closure check.
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Review RatingNumber of Reviews
Carabiner Size:Standard
Carabiner Type:Locking Biner
Country of Origin:UK
Frame Shape:Modified D
Gate Closed Strength:25KN
Gate Open Strength:8 kN
Gate Opening:20 mm
Gate Style:Straight
Major Axis kN:25 kN
Minor Axis Strength:7KN
Minor Axis kN:10 kN
Open Strength kN:8 kN
Weight:3.2 oz / 93 g
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Dmm Belay Master 2 Carabiner - Screwgate Reviews:


Ohh the internal debate - 4 stars or 5 stars???? Let me make it clear I absolutely love this biner. I love the fact that you cannot cross load it, I love the fact that the plastic clip won't shut unless the screwgate is done up, I love its simplicity and I love the smoothest action you can find on any screwgate commercially made. (DMM do make amazing screwgates - FACT!!)
So why 4 stars? The only reason I gave it four stars is because the plastic clip can be detached from the biner and lost. Over the last three or so years that I've been using mine only once has the plastic clip been twisted off the biner when I had it attached to one of my gear loops (maybe I should learn to always clip it fully closed but when I'm not belaying I sometimes leave it simply closed on a gear loop). Luckily, at the time it fell, not only did I notice it had been knocked off but also it fell somewhere where I could pick it up and re-attach it, ie it didn't fall 200feet down a rock face. I have also heard about one guy who had his plastic clip nicked in Camp 4 - not good! I guess the reason DMM manufacture it like this is so that you can take the clip off and use it like a normal biner but I never need that, I have a bunch of Shadows for that. Also when you compare it to a Girdlock, you cant take the metal piece off that - there's no 'semi' dual use for that biner, so I would say you could make the plastic clip a more permanent feature.
Like I said though - this is an awesome biner and I wouldn't trade mine in for any other (Gridlock or anything). I'm currently thinking about getting one (two?) more to use with a Silent Partner.

mar4857067 at on 01/05/2012

This thing is awesome!

This belay biner is awesome! I am not a huge fan of autolockers, because I think that the responsibility of locking the carabiner resides with the climber. This is essentially a regular locking carabiner with a little plasitc piece that swivels into position only when the carabiner is locked. It also prevents the biner from cross loading, which is really nice. I would recommend this to everyone. This piece of kit is also nice indoors as some gyms make climbers use the Gri Gri, and that sometimes has a tendency to cross load carabiners.
Ron at Mountain Gear on 10/10/2009

Improved Design

Great design improvements; keylock nose prevents snags and new spine design saves weight and holds clip in place. Plastic clip prevents cross loading but can easily be removed if HMS is required. I also own the previous model. Works good with Grigri, I did find however the HB Sheriff with it's aluminum loop would open the plastic clip as apposed to the wire loop on my ATC which did not. After finding and using the Belay Master this is all I belay off.
Matt at Mountain Gear on 07/07/2010

I have used this for a couple months now and it is a great biner. Keeps you from side-loading and makes you double-check that you're locked in. A no-brainer, especially for newer climbers who don't have the muscle memory down. Also, the biner seems to hold up well to fast belays/rappels. It should last a while.

Kenley Unruh at on 12/17/2012

Ggreat item

Bought these to replace the same dmm biner that was 11 years old. This one is slightly larger and lighter in weight. There is no way you will cross-load this biner while belaying or rappelling.
Jeff at Mountain Gear on 08/08/2009

Won't belay with anything else now!

I used this belay carabiner and non other now. I use it indoors and outside. It won't close unless it is locked and secure. Best device to avoid cross loading your carabiner.
Michael at Mountain Gear on 08/08/2010

great belay biner

it takes a bit to get it set up with the extra plastic piece but is a great belay biner otherwise I am satisfied
JackPot at Mountain Gear on 10/10/2009

No more crossloading!

Great belay biners. The clip is very good when switching from slack to tension avoiding cross loading the biner.
Christophe at Mountain Gear on 08/08/2009