- Package of 1000 United States Standard premium washers
- Inside Diameter 9/16"
- Outside Diameter 1.39"
- Thickness 3/32"
- Zinc plated for corrosion resistance
These general use flat washers are positioned under the head of a bolt or nut in order to provide a smooth bearing surface and distribute the fastener load over a wider area. Flat washers are commonly used in decks and fence building.