Washers are great for distributing force. If you tighten a 1/4 inch bolt into a piece of wood you may over tighten and damage the wood. A washer will spread the push of the bolt head over a wider area, minimizing or even preventing this effect.
Pairs great with 1/4-20 bolts and nuts.
- inner diameter: 0.25″
- outer diameter: 0.734″
- thickness: 0.062″