5/16″ Zinc Plated USS Flat Washers, 100 Qty (BCP306)

• Package of 100 United States Standard premium washers
• Inside Diameter 3/8″
• Outside Diameter .897″
• Thickness .104″
• 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.