The world's most in-depth and scientific reviews of outdoor gear

Mad Rock Super Tech Keylock Screw Review

Mad Rock Super Tech Keylock Screw
Best Buy Award
  • 1
  • 2
  • 3
  • 4
  • 5
Price:  $8 List | $7.95 at Amazon
Pros:  Light, great value, easy to grip.
Cons:  Does not hold many ropes, not great gate clearance.
Manufacturer:   Mad Rock
By Chris McNamara and Chris Summit  ⋅  May 11, 2010
  • Share this article:

#6 of 11
  • Function - 30% 7
  • Ease of Unlocking and Locking - 25% 7
  • Compactness lightweight - 20% 10
  • Gate Clearance - 15% 6
  • Gate Hang Up - 10% 7

The Skinny

This is the best value for lightweight carabiners. It scored only a little lower than the Edelrid Pure Screw but costs much less. If we were loaded, we would go with the Pure Screw exclusively with a few Petzl Attache here and there. But if you are on a budget, or just appreciate value, then it's hard to beat this carabiner for its weight and the money. The only other sub- $8 light carabiner we tested is the Mad Rock Ultra-Tech HMS, which is much heavier.

Compare to Similar Products

Our Analysis and Test Results


This is a very light (almost the lightest). While it is small and compact, it has an I-beam design that makes it easy to handle. It is the perfect carabiner to load up on for multi-pitch climbing because it is so light. Only a few carabiners are lighter, and it's only by a few grams.

Gate Clearance

There are no major dislikes other than that since it is a small carabiner, it doesn't have great gate clearance or hold much. It is also not good for belaying the second from the anchor.

Best Application

A lightweight all around locking biner best for uses where size and weight are a key factor.


This is hands down the best value in small locking carabiners. It's the biner we load up on for trad climbing applications.

Chris McNamara and Chris Summit