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Black Diamond
GridLock Screwgate Carabiner

4.771428571428571 out of 5 stars
35 Reviews

Out of Stock

Don't worry though, we have a lot more Carabiners in stock than that.

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Why We Like The Black Diamond GridLock Screwgate Carabiner

For a carabiner that lives in harmony with our belay device, we look to the Black Diamond GridLock Screwgate Carabiner. The innovative belay retainer keeps the carabiner in its proper orientation as we give our partner a catch, no more dangerous cross-loading. The unique pear shape keeps our system streamlined while still giving plenty of room and a smooth surface for a Munter hitch. From icy alpine sends to sandy desert routes, the screwgate remains operational, never freezing or gunking up.


  • Patent-pending carabiner designed to pair with belay devices
  • Screwlock gate is reliable in wet, cold, and sandy conditions
  • Hot-forged aluminum with partial I-beam build is light and strong
  • Rounded rope-bearing surface for a smooth feed and reduced wear
  • Belay retainer prevents cross-loading and shifting
  • Item #BLD00HD
Gate Type
keylock nose, belay retainer
Major Axis Strength
Minor Axis Strength
Open Gate Strength
Gate Opening
Claimed Weight
Manufacturer Warranty
limited 1 year

Overall Rating

5 based on 35 ratings

Review Summary

1 Stars - 0 reviews
2 Stars - 0 reviews
3 Stars - 2 reviews
4 Stars - 4 reviews
5 Stars - 29 reviews

Fits True To Size

Screen reader users: the following list provides a visual scale to illustrate the product fit. Please refer to the heading above for the fit type in text.
Runs smallTrue to sizeRuns large

What do you think about this product?


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5 out of 5 stars

April 22, 2024

Great Belay Option!

I bought a few of these and it has definitely helped make belaying easier. My wife is still new to the sport and it's one less thing she has to focus on while learning.

Brandon S.

Originally reviewed on

5 out of 5 stars

March 4, 2024

perfect carabiner for grigri

i love this carabiner when belaying, keeps my grigri from becoming twisted

Carlos S.

Originally reviewed on

5 out of 5 stars

February 22, 2024

Great Carabiner and Cool Design

I love the tab that keeps the belay loop at the bottom to prevent cross loading.

Wes N.

Originally reviewed on

5 out of 5 stars

February 17, 2024

Good deal

A basic design with ease of functionality makes this a fool proof item for its intended purpose. Nothing over complicated, light weight and strong. Why bother with anything else?

Chad S.

Originally reviewed on

5 out of 5 stars

December 24, 2023

Perfect for the belay loop

This carabiner is exactly what I wanted. Everything the Description says is accurate about this carabiner. Would highly recommend this product.


Originally reviewed on

5 out of 5 stars

December 5, 2023

Good Carabiner

The locking at bottom is great for a gri gri so that it doesn’t move around. If I had to be nitpickey I wish that the screw lock had a different color on it so when the gate was fully locked it would be very obvious that it’s locked but that’s not the end of the world!

Wyatt B.

Originally reviewed on

5 out of 5 stars

November 26, 2023

It is really helpful for

It is really helpful for belaying I think every climber need such Carabiner


Originally reviewed on

5 out of 5 stars

July 27, 2023

Guarantees the carabiner wont cross load

I love how this guarantees that the Carabiner. Won't cross load on me.

Vincent V.

Originally reviewed on

5 out of 5 stars

July 2, 2023

No more cross loading

This carabiner takes away all the risk of cross loading while belaying!

Blake R.

Originally reviewed on

5 out of 5 stars

January 18, 2023

Good for peace of mind

Don't have to worry about orientation anymore. Using it for rappelling, HMS, belaying. Bomber.

Liam C.

Originally reviewed on