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U.S.S. for Gr-5 & Gr-8 applications, Zinc Yellow Thru-Hardened and Structural Flat Washers

USS flat washers sized for Grade 5 and Grade 8 bolt applications provide a wider bearing surface than SAE washers for high-strength bolted connections. Blue Ribbon Fastener stocks these zinc yellow washers in standard sizes to pair with Grade 5 and Grade 8 hex bolts.
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Usages for U.S.S. for Gr-5 & Gr-8 Applications Washers

These washers are sized to match Grade 5 and Grade 8 bolt applications with a larger USS outer diameter, providing extra bearing surface for softer materials or larger clearance holes in general machinery and construction assembly.

USS Gr-5 & Gr-8 Washers for all Industries

General manufacturing, construction, and heavy equipment assembly all use USS washers sized for Grade 5 and Grade 8 bolts. Blue Ribbon Fastener supplies consistent stock for production and MRO needs.

U.S.S. for Gr-5 & Gr-8 Applications Features for Engineers & Buyers:

  • USS pattern sized for Grade 5 and Grade 8 bolt applications
  • Zinc yellow (chromate) finish for added corrosion resistance
  • Wider outer diameter than SAE washers for extra bearing surface
  • Pairs with Grade 5 and Grade 8 hex bolts and cap screws
  • Available in a range of standard sizes
  • Same-day shipping on in-stock sizes when ordered by 2:30 PM CST
  • Volume and repeat customer pricing available — call or request a quote