BLACK DIAMOND RockLock Screwgate/Twistlock Carabiner Keylock Nose Locking
Condition: New
$19.95
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was $23.95
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Availability:
In Stock.
Arrives
Nov 7 – Nov 8
At a glance
- Condition
- New
- Color
- Gray
- Style
- Screwgate
- Model
- BD2102561003ALL1
- Weight
- 85 g
- Material
- Aluminum
- Shape
- H-Shape
- In the box
- Carabiner
Features 5
- LARGE, SECURE DESIGN: The RockLock is Black Diamonds largest locking carabiner, perfect for belaying, rappelling, and anchor systems. Its spacious HMS shape accommodates knots and belay devices with ease.
- STRONG & DURABLE BUILD: Hot-forged aluminum construction provides excellent strength without excess weight. Ideal for both indoor and outdoor climbing, guiding, or technical ropework.
- KEYLOCK NOSE FOR SNAG-FREE USE: Prevents rope or gear snags when clipping or unclipping. Smooth operation ensures fast, reliable handling during belays, anchors, and gear organization.
- EASY ONE-HANDED OPERATION: Ergonomic spine and screwgate design make it simple to operate, even with gloves on. Works well with ATC-style belay devices and Munter hitches for versatile use.
- VERSATILE FOR CLIMBING & SAFETY: Designed for rock climbing, mountaineering, and rescue applications where a secure, large-capacity locking carabiner is needed. Dependable strength and smooth handling in all conditions.
Description
Our largest locking carabiner, the RockLock Screwgate is perfect for belaying, rappelling or anchors, and now features hot-forged lightweight construction, a redesigned spine for better handling, and a larger rope-bearing surface for greater durability.
Specs 12
| Color | Gray |
|---|---|
| Material | Aluminum |
| Brand | BLACK DIAMOND |
| Item Weight | 85 g |
| Shape | H-Shape |
| Unit Count | 1 Count |
| Material Type | Aluminum |
| Lock Type | Screw Lock |
| Brand Name | BLACK DIAMOND |
| UPC | 793661433019 |
| Global Trade Identification Number | 19 |
| Manufacturer | Black Diamond Equipment |
No specs match.
Frequently asked questions
If you place your order now, the estimated arrival date for this product is:
Nov 7 – Nov 8
Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
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Top Amazon Reviews
Great quality from a trusted brand. Using it for a custom-built saddle hunting tether
Color: Black
Style: Screwgate
I've enjoyed climbing in various settings for a long, long time. The very first certified-for-climbing carabiners I ever purchased were Black Diamond wire-gate carabiners I got for my very first backpacking tent. Since then, my gear collection has certainly grown a lot, but Black Diamond still makes up a substantial portion of my carabiners and is a brand that I, and clearly many others, have trusted for a long, long time. So when I was looking for a large carabiner with a continuously round/tube design to pair with my RopeMan 1 when building out a custom setup for use as a saddle hunting climbing lanyard, tether, and/or a positioning lanyard for tree work and limb walking, I wasn't surprised at all to find that this RockLock carabiner was the best fit for my needs. I'm using it with the aforementioned RopeMan 1 and 11mm Sterling rope which gives it a nice, tight fit within the RopeMan due to the consistently round and thick frame of this carabiner. While it's absolutely fair to say this is a bit heavier and bigger than some may desire for ultralight climbing, this is a perfect size for my needs as the tight fit with the 11mm rope helps to keep the carabiner from folding or flopping so it's easier to clip on to my D-rings or bridge as needed. And the large gate size makes it equally easy to transition this from serving as a climbing lanyard on the D-rings of the saddle, to a tether connected to the bridge. I opted for the screwgate version simply because of the matte black color and how that'll work better in my hunting setup, and it looks great with that non-flashy, non-shiny finish. But honestly, I'll probably end up getting a twistlock version as well now that I know how well this works if I get another RopeMan to have a totally dedicated rig for a positioning lanyard for faster on/off connections. The screwgate isn't a problem, it's just a little slower. This is perfectly fine for my hunting scenarios since I want to know and trust that the gate is fully secured, and I don't need to make transitions particularly fast. But for positioning purposes I like the idea of having this on the other side for faster switching from dual-anchor points to single-anchoring if I'm going to be stationary and want to triangulate with different lanyards. This carabiner is thick and sturdy and like I said already, I trust it with my life. And one additional positive thing I can say about Black Diamond in general, which certainly also applies to this carabiner, is that they keep their gear reasonably priced in an industry that is rife with gimmicks and price gouging. This carabiner was listed for $19.99, which is honestly on the higher side for what I've paid for BD carabiners in the past, but this is also the largest BD carabiner I think I currently own and that still puts it a fair bit cheaper in cost than Petzl (who I also have plenty of love and trust for) so I'm very grateful that BD continues to make quality, trustworthy gear without sending me into bankruptcy!
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Reviewed in the United States on September 10, 2026 by Amazon Customer
Great for climbing and rappelling, would trust with my life
Color: Gray
Style: Screwgate
Great and reliable carabiner, worth the investment for the security and weight strength. Very light for its capacity. Color makes it easy to see if loc is engaged. Twists by typical screw principles, would trust this with my life and have many times.
Reviewed in the United States on March 18, 2026 by Levi R.
Safe, Strong and best carabiner for Rappelling
Color: Gray
Style: Screwgate
Awesome for rappelling, locks up good, has plenty of room for rope wraps and is very affordable. The round bar design allows for smooth rope operations.
Reviewed in the United States on November 9, 2025 by Daniel M
It’s a go to
Color: Black
Style: Screwgate
Love them, have a few.
Reviewed in the United States on June 19, 2026 by Ewan Leask
Five Stars! It worked very well for me!
Color: Black
Style: Screwgate
Well my purchase of this wasn’t for what you think. You see, I bought this black diamond carabiner because I wanted to propose to my boyfriend in a unique way. We hike often and went on a trail that was so terrifying (to me, who is afraid of heights) that I kept saying I needed a carabiner for support to attach to the cables on the trail. (The trail had ladders too. Terrifying for those of us who aren’t rock climbers). Fast forward a few months, and I decided to propose to him (he had asked before but I wasn’t ready). I wanted to propose with a diamond, but also wanted to be original. This carabiner did the trick. It even has “Black Diamond” stamped on it. I asked, he said yes, so we will take the plunge. With the awesome support of this heavy duty carabiner, of course. Five stars, this definitely worked!
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Reviewed in the United States on November 5, 2020 by Megs
USEFUL & HANDY NOT JUST FOR CLIMBING
Color: Gray
Style: Screwgate
Aside from mountain and rock climbing, this carabiner is handy as grip equipment. It's strong and light enough to carry my video/audo equipment. Big enough around Pelican and suitcase handles while traveling. Black Diamond is the best in the biz.
Reviewed in the United States on April 17, 2026 by Big
Great Carabiner.
Color: Gray
Style: Screwgate
This is a great carabiner, screw gate old school charm. It works well, strong, well built, with a wide opening for larger ropes and equipment (Pulley's) I like and bought two more for my belay harness. Good Luck.
Reviewed in the United States on March 27, 2024 by C-System's
Robust
Color: Gray
Style: Screwgate
Quality carabiner as usual with this company
Reviewed in the United States on January 25, 2026 by Moe