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Mammut
Sender Screwgate Carabiner

4.615384615384615 out of 5 stars
13 Reviews
$14.95
Color:Gold

Size:

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Sender Screwgate Carabiner

When every gram counts, the Sender Screwgate carabiner is the right choice for climbers who demand performance. This extra-lightweight and compact carabiner features a D shape for easy handling. The key lock nose prevents any snagging when clipping and unclipping. The orange marking is an additional safety feature, acting as a warning if the carabiner is not screwed closed. In icy or dirty environments, a screw-locking carabiner is better choice in comparison to a twist-lock version.


Details

  • Item #MAMU5BG
Material
100% aluminum
Gate Type
screw-lock
Features
keylock nose
Major Axis Strength
26 kN
Minor Axis Strength
9 kN
Open Gate Strength
10 kN
Dimensions
99 x 99 x 59.5mm
Claimed Weight
1.69oz
Recommended Use
climbing
Manufacturer Warranty
2 years

What do you think about this product?

Overall Rating

4.5 based on 13 ratings

Review Summary

1 Stars - 0 reviews
2 Stars - 0 reviews
3 Stars - 0 reviews
4 Stars - 5 reviews
5 Stars - 8 reviews

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5 out of 5 stars

July 5, 2025

Loves these carabiners for the lightweight smaller-mid size!

I bought a bunch of these in time for a few weeks of canyoneering in Southern Utah. I usually carry a few of the Mammut workhorse carabiners for when I want big carabiners (like using a sandtrap or rigging rappels) and I like to carry a bunch of smaller lightweight ones for PAS's, clipping things to our packs, clipping rope bags to our harnesses, and generally all clippy type needs in a canyon. These are lightweight, strong, have the orange warning if you are not locked, and open wide for the small size. Great carabiners and I will probably buy a few more in the future.

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Michael A
ExpertVoice.com

Originally reviewed on ExpertVoice.com

5 out of 5 stars

June 21, 2025

Good locker

I've used this a few times for glacier climbs. I like that it's easy to tell when it's locked, thanks to the orange coloring on the gate. Highly visible in general, assuming your stuff isn't all orange. Good action and not too heavy. Not much else to say, really...it's a locking carabiner! Good for climbers of all levels, or anybody wanting to secure themselves or their gear. Mammut makes great stuff.

Laurel A
ExpertVoice.com

Originally reviewed on ExpertVoice.com

5 out of 5 stars

November 9, 2023

Solid carabiner

This is a solid working carabiner. I wouldn't use this to create anchor points or belay from it (although you absolutely could) I've just been using them for work loads at my gym I work at. It's small and works perfect for the tasks I use it for.

ExpertVoice.com

Originally reviewed on ExpertVoice.com

4 out of 5 stars

September 14, 2023

Very light weight and versatile locker. Super nice for anchors and it can be used with belay devices. The indicator is also nice for paranoid climbers, if you don't see any orange, the carabiner is locked!

Joslyn N
ExpertVoice.com

Originally reviewed on ExpertVoice.com

5 out of 5 stars

August 10, 2023

Works well, operates smoothly and haven't had any issues yet

ExpertVoice.com

Originally reviewed on ExpertVoice.com

4 out of 5 stars

July 15, 2023

Lightweight D shape option

Lightweight and orange mark under the screw on the gate is amazing. Could be a larger option sometimes though

ExpertVoice.com

Originally reviewed on ExpertVoice.com

4 out of 5 stars

May 30, 2023

Lightweight, easy to manipulate

Very light, but still robust for the size. Easy to manipulate. Size is great for almost everything, but a little small for clove hitches or munter hitches with a rope thicker than 9.5

ExpertVoice.com

Originally reviewed on ExpertVoice.com

5 out of 5 stars

March 7, 2023

Great price

Overall cost and construction was just what I was looking for.

ExpertVoice.com

Originally reviewed on ExpertVoice.com

5 out of 5 stars

January 12, 2023

Great carabiner

10/10. Works great for cleaning routes. I use the bigger mammut biner for my gri gri but love this one for my atc.

ExpertVoice.com

Originally reviewed on ExpertVoice.com

4 out of 5 stars

December 14, 2022

Great locker

Small, lightweight, and has orange on the gate to indicate if it is open or locked. Plus the screw gate is smooth, really liking these lockers. Edit 12/23/23: On a wet day on the ice this month the gates on these froze and were prone to sticking. I was able to easily unlock them which was a bonus, but even after unlocking the gate itself required some work to get open. I did not have this issue on other carabiners that also have a color lock indicator.

ExpertVoice.com

Originally reviewed on ExpertVoice.com