18-8 Stainless Steel Extra Thick Flat Washers

Extra Thick Flat Washers

18-8 Stainless Steel Heavy Duty Flat Washers


  • Extra thick flat washers are made to handle extra pressure from fasteners
  • Less likely to damage the material
  • Used to distribute loads of threaded fasteners
  • Can act as spacers on a fastener
  • Corrosion and rust resistant 18-8 stainless steel
  • Commonly used on:
    • Decks
    • Docks
    • Large Timber Projects

Extra Thick Flat Washer Specifications

Washer Sizes Inner Diameter (ID) Outer Diameter (OD) Thickness
1/4" 9/32" 5/8", Max 0.630" - Min 0.5625" Max 0.125" - Min 0.100"
5/16" 11/32" 3/4", Max 0.760" - Min 0.700" Max 0.125" - Min 0.100"
3/8" 13/32" 7/8", Max 0.8750" - Min 0.8125" Max 0.125" - Min 0.100"
1/2" x 1-1/4" 17/32" 1-1/4", Max 1.252" - Min 1.248" Max 0.125" - Min 0.100"
1/2" x 1-1/2" 17/32" 1-1/2", Max 1.500" - Min 1.4375" Max 0.125" - Min 0.100"
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