A washer might seem like a tiny or insignificant part, but skipping out on one can have grave consequences. The most basic type of washer, a flat washer, helps to evenly distribute pressure, prevents screws from coming loose and can prevent surface damage during installation.
A locking washer, also known as a split washer or spring washer, is used to help keep your bolts and nuts in place by creating extra tension. No matter how much your product gets rattled around, it's not coming loose.
Are your machines making too much noise? Dampen the sound with a nylon washer. Designed to help cushion some of the force from a shaking machine, a nylon washer can help to keep things quiet and prevent wear and abrasion on your equipment. They are also great for electrical insulation to protect any metal screws you might be using.