Petzl Attache Screw-Lock

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The Attache screw-lock served as my standard HMS carabiner…

Rating: rated 5 of 5 stars

The Attache screw-lock served as my standard HMS carabiner for a number of years until the William series came out. I still use it for a lot of anchor situations when teaching climbing instructors and for glacier travel. It accommodates 10.5mm and smaller diameter ropes for Munters and muled Munters quite nicely, though muling a device (like an ATC) can be a bit tight on the larger diameter ropes.

As a screw-lock, it has the minor problems of all screw-locks - you have to watch how the rope runs through it, since the running rope can unscrew the sleeve; and you have to be sure not to overtighten the sleeve, especially when it gathers the inevitable dirt in the threads.

Manufacturer's Description

Visit Petzl's Attache Screw-Lock page.

Retailers' Descriptions

Here's what other sites are saying:

Thanks to its compact shape and SCREW-LOCK locking system, the Petzl ATTACHE Carabiner is designed for multiple uses related to belaying: connecting a belay system to a harness, belaying with a Munter hitch... It has an H cross section to reduce weight, as well as the Keylock system to avoid the carabiner snagging during maneuvers.


The mighty Petzl Attache Screw Lock Carabiner is one of the most versatile, lightweight locker on the market. It's compact enough to be an advantage at crowded belay stations with your rope team of three, yet big enough for use as a belay carabiner or for use with a Munter hitch. Best of all, the Attache features a red lock indicator so you can visually confirm screw gate is locked. Compact shape is ideal for clipping into anchors at belay stations H-shaped cross section offers an improved strength-to-weight ratio Wider contact surfaces facilitate better rope glive and reduced wear on the carabiner body Screw-lock sleeve is smooth and easy to use Red lock indicator offers visual confirmation that the screw gate is in the lock position Keylock system helps prevent snagging the nose when clipping and unclipping If using as a belay carabiner the Attache is designed for rope glide and to ensure good position of the belay device Shape is adapted for easy tying or untying of a clove hitch or belaying with a Munter hitch Made in France

- OMCgear

Petzl Attache Carabiner with Screw-Lock- M38ASLThe Petzl Attache Carabiner with Screw-Lock- M38ASL is designed for multiple uses involving belaying. This carabiner s light and compact shape make it perfect for belay stations. Equipped with Screw-Lock for precision handling and secure locking, the attach has a visual indicator to assure the carabiner is locked. The Petzl Attache Carabiner with Screw-Lock- M38ASL features a nose and Key-Lock system designed to ensure proper positioning when connecting to a belay station or belaying with a Munter hitch.

- SunnySports

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