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  • Locking mechanism provides security against accidental opening, and locks to the gate, not the frame, to prevent jamming
  • Classic D shape carriers the loads off-center, toward stronger, non-gated side
  • Hooded gates offer smooth rope-bearing surfaces
  • Tapered nose for increases strength and spin rivets for smooth snag-free gate surfaces
  • CE certified

Made in USA.

View all Omega Pacific Carabiners

REI membership


Best Use Climbing
Carabiner Type Locking Carabiner
Gate Type Screw-lock
Gate Open Clearance 16 millimeters
Strength Major Axis Closed 31 kilonewtons
Strength Major Axis Open 9 kilonewtons
Strength Minor Axis 9 kilonewtons
Dimensions 108.7 x 60.7 millimeters
Weight 74 grams
Rated 4 out of 5 by from Great Starter Carabiner This is a great, strong, low-cost carabiner that is perfect to start the rack of a beginning climber. I bought these as my first lockers and still use them to setup anchors all the time. My main lockers for ropework now are the Black Diamond Rocklock Screwgate biners simply because they are easier to clip and unclip and because they have a much bigger opening. That said, the OP ISO Carabiner is a rock solid carabiner ready to use in any high stress systems. They are great for anchoring Tyroleans, rescue systems, and just about any other anchor system where you can take your time to set it up.
Date published: 2008-05-06
Rated 5 out of 5 by from Outstanding all-round twist locker I love these things for setting top rope anchors. They're a very useable shape and size, and confidence inspiring because of their build/weight. They're relatively inexpensive, so I have about 10, and sometimes I use them all at one time setting up multiple top-ropes at the crag. I also use them to build belay anchors despite their heft, I don't mind climbing with them b/c I rest easy when they're being used.
Date published: 2011-01-26
Rated 5 out of 5 by from Coolest carabiner ever! This is probably the best D or even locking carabiner on the market with the 31kN(6967Lbs) of strength and a price of about $8 I would buy these whenever I need a locking carabiner.
Date published: 2007-10-01
Rated 5 out of 5 by from 1st string or 2nd string This D screw locking biner is awesome it only takes back seat to it's big brother also made by Omega Pacific.
Date published: 2007-09-06
Rated 4 out of 5 by from Perfect for group TR setups. Too heavy for spoiled modern lead climbers, and too-small-opening for complicated anchor building (and never intended for belay or rappel use!). But these 'biners are so durable, strong, and inexpensive, they're perfect for setting up top rope anchors for large groups (though OP's locking ovals are better for the powerpoint). I keep a handful around just for those big group days, and save my ultralights for myself!
Date published: 2008-03-13
Rated 3 out of 5 by from Workhorse anchor carabiner These were my first lockers and I still use them for anchor building when I take people out for top rope sessions. They've taken a beating over the years but they show little wear and the screw gate still works well. The weight is a deterrent to taking them on lead, as is the smaller opening that can make anchor building a chore after a hard lead.
Date published: 2007-11-14
Rated 5 out of 5 by from Best Aluminum carabiner for the money So far as Aluminum carabiners go, I think this is the best deal out there. It locks up tighter than the $16-$20 Petzel or Black Diamond, it's compact, lightweight and very strong. I have 6 of these, and I use all of them. They work especially well for (non-rescue) anchor systems, the 1-inch webbing fits perfectly in the ends.
Date published: 2009-05-06
Rated 4 out of 5 by from Good Carabiner It's a good all around D shaped locking carabiner, its pretty strong. It seams to work well in most situations. How ever it has a rather small gate clearance so it can be difficult to clip into some things at times.
Date published: 2011-11-28
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