Friction lock

Hardened Material Low-Friction Gardening Pruning Shear with Locking Spring and Sharp Blade

Petzl Freino Twist-Lock Brake Carabiner

The Petzl Freino is a twists lock carabiner with a snap hook and a friction spur for descenders. It's unisex, one size fits all, and comes in black color. Its primary function is to secure ropes during descending activities like climbing or caving.

Molex Standard 4-Pin Right-Angle Wire-to-Board Header with Friction Lock, 2.54 mm Pitch

Quick-Release Weight Locking Barbell Clip with Increased Friction

Quick-Release Weight Locking Barbell Clamp with Enhanced Friction

Quick-Release Weight Locking Barbell Clip with Increased Friction