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Acme Tornado 636 vs Black Diamond Oz Screwgate Carabiner
Weight and specs compared for 2026 — and which one to choose.
Acme Tornado 636 is the lighter option — 20 g lighter than the Black Diamond Oz Screwgate Carabiner (63% less weight). If grams matter to you, that is the one to beat.
Black Diamond Oz Screwgate Carabiner
32 g
Ultralight screwgate carabiner for via ferrata.
Full details →Acme Tornado 636 vs Black Diamond Oz Screwgate Carabiner: which should you buy?
If saving weight is your priority, the Acme Tornado 636 wins — at 12 g it is 20 g (63%) lighter than the Black Diamond Oz Screwgate Carabiner (32 g). That said, the heavier option may justify the extra grams with more capacity, durability or comfort, so weigh the trade-off against how you'll use it.
See where both rank against everything else in this category on the lightest safety page, or browse the full gear weight database.