Screw Gate Carabiners

Buying guide

When to use a screw gate

Screw gates shine where a connection is made once and left alone, such as fixing a pulley to a sling in a rigging setup or closing a haul bag. They are inexpensive and often stronger than auto-lockers in the same size. Large steel screw gates, like the SMC heat-treated steel model, are popular for rigging because they shrug off wear. Always screw the sleeve fully closed, check it during the job, and keep auto-locking carabiners in your climbing system.

Steel or aluminum

Aluminum screw gates are light and good for gear and slings. Steel screw gates are heavier but tough and wear resistant, which suits rigging blocks, slings and other places where rope runs through the carabiner. HMS shapes, like the Petzl William, handle bulky connections and hitches. Inspect threads and sleeves for grit, keep them clean and dry, and retire any carabiner with damaged threads or a gate that will not close smoothly.