Black Diamond Rocklock Screwgate

Priced: $7.97 - $24.95 Rated:   - 5 stars out of 5 by 4 reviews.
Black Diamond Rocklock Screwgate
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Black Diamond Rocklock Screwgate -

An all-around utility locking carabiner, the Rocklock screwgate is Black Diamond's largest belay and rappel locker. This large pear-shaped carabiner is HMS compatible and has a slightly curved spine to maximize the gate opening. The square hinge end to holds your belay loop securely in place. Rocklocks are easy to use for many belaying and rappelling techniques, as it can be operated one-handed, especially with gloves on. Keylock nose prevents snagging for smooth transitions, time and time again. A versatile anchor or belay carabiner, the Rocklock makes a perfect addition to your climbing arsenal. Plus, at such a great price, you can purchase the Rocklock Screwgate 2nd for hanging hammocks, securing extra gear to your hiking pack, or countless other non-climbing uses.

*Blemished* This product is a cosmetic second. It is fully functional, strength tested, and warranted; we procure these by the hundreds directly from the manufacturer. We usually cannot even tell what the blemishes are, but we are happy to pass the savings on this item on to you!



  • Large capacity.
  • Easily operated with one hand.
  • Slightly curved spine maximizes gate opening
  • Always read and understand the warnings and instructions that accompany your gear.**
  • Keylock nose prevents snagging
  • Square hinge end holds belay loop securely in place
Take some of the worry out of your climbing knowing the gear you are working with is the strongest and safest out there, Black Diamond uphold its reputation of durable, safe gear with the Rocklock Screwgate. The easy-to-use screwgate can be operated with one hand and is perfect for two ropes and is Munter Hitch compatible. The Rocklock can operate with different belaying styles and prevents snagging with a keylock nose.

Black Diamond's largest locking biner, the Rocklock Screwgate has a non-snagging keylock nose. The Rocklock Screwgate’s large size makes it an excellent choice when rappelling or belaying with two ropes, wearing gloves or when using a variety of belaying and rappelling techniques. Easily operated with one hand.

Appalachain Outdoors
Your friends are depending on you to take care of them, and with the new Rocklock Screwgate caribiner they can climb with a peaceful mind. The largest screwgate carabiner that Black Diamond Equipment offers ensures safety and security for all belays.
As the largest keylock locking biners from Black Diamond, Rocklocks are easy to use with many belaying and rappelling techniques-especially with gloves. The Keylock System elimintes the hook on the nose of the carabiner to elimintate iritating snaggs. The Screwgate lock mechanism is secure and can be opperated with one hand.
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Average Price History: Price History
Review RatingNumber of Reviews
Closed Gate:24 kN
Closed Gate Strength :24 kN (5395 lbf)
Gate Opening:21 mm
Minor Axis Strength :7 kN (1574 lbf)
Open Gate:8 kN
Open Gate Strength :7 kN (1574 lbf)
Weight:89g, (3.1 oz)
gate open strength:8
major axis strength:24kn
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Black Diamond

Black Diamond Rocklock Screwgate Reviews:


Great Carabiner

I first bought 5 of these for general climbing purposes. Then when I got into anchor building I quickly found how great these are. They aren't heavy and they give you a little extra comfort when setting up your main point. I know only take 4 or 5 lockers with me on my trips, and all of them are Rocklocks except for a steel 65 kN one I use with my repelling device and my belay device. Reliability + Cost + Weight = Great Buy
Chris the Cristobal at Campmor on 05/05/2011


The size is right, the design is strong, and the key lock nose doesn't get hung up. For the money this is the best belay biner out there. (according to me)
Logan at on 08/08/2009


I use this for tree climbing. They work great and are large. Great for big rope.
WIMMPYIII at Campmor on 08/08/2013

Works great

It's a carbiner. Does what it says. Works as planned. No issues.
Napsack73 at Campmor on 12/12/2013