Lockwashers don't work in cars. Period. The only way you can keep a bolt from coming loose is by using either a threadlocking compound or a positive locking device (such as a cotter pin). (Photo by ...

Thread locking adhesive that can save you lots of headaches ... but only if you use it correctly. Threadlocker can be an incredibly useful tool in any DIYer's arsenal. Used to ensure nuts and bolts ...