Hey DIYers and mechanics, listen up – these little guys are a lifesaver for anything that rattles loose. This is a pack of 100 M4 size nylon lock nuts. The 'lock' part comes from a nylon ring embedded in the top. When you screw them onto a bolt, the threads cut into that nylon, creating a ton of friction that keeps the nut from backing off on its own. No more needing a separate lock washer or constantly tightening things! They've got a 0.7mm thread pitch. Made from black carbon steel with a finish that helps fight rust. Super handy for bikes, motorcycles, furniture assembly, electronics projects, machinery – you name it. Just remember, they're meant to be a permanent or semi-permanent fastener; you can reuse them a few times, but the locking effect might lessen. For the price, getting 100 is a steal. Keep your projects secure and vibration-proof!
