QA1 Metric Jam Nut - M5-0.8 Left Hand - 8mm Hex 2.7mm Wide - Steel

This M5-0.8 left-hand thread metric jam nut is made from steel and features a 2.7mm width with an 8mm hex size. It's designed for use in metric applications where a secure, adjustable locking nut is needed. The steel construction offers good durability for its intended purpose.

Jam nuts like this are useful for fine-tuning adjustments on threaded components. They work by threading onto a bolt or shaft, and then a second nut (the jam nut) is threaded against the first to lock it in place, preventing it from loosening due to vibration or movement. This particular nut has a left-hand thread, meaning it tightens in the counter-clockwise direction, which is important to note during installation to ensure it functions correctly and doesn't loosen the component it's meant to secure.