Hillman Zinc-Plated Steel 5/16 in. USS Flat Washer, 100-Pack

Regular price $6.99

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5/16 in. Zinc-Plated USS Flat Washer (100-Pack)

Durable zinc-plated steel flat washers designed for 5/16 in. USS bolts and screws. They distribute load to protect materials and enhance fastener security while providing moderate corrosion resistance.


Key Features:

  • Corrosion-Resistant Zinc Plating: Helps protect against rust for longer-lasting performance
  • USS Compatibility: Sized for use with 5/16 in. USS threaded bolts and screws
  • Load Distribution: Broad surface reduces material wear and prevents fasteners from sinking
  • Versatile Use: Ideal for wood, metal, and general fastening applications
  • Bulk Value Pack: 100 pieces for convenient stocking and project efficiency

Specifications Table:

Specification Details
Material Steel
Finish Zinc-plated
Washer Type Flat washer
Standard USS
Bolt/Screw Size Compatibility 5/16 in.
Pieces per Pack 100

Frequently Asked Questions (FAQ):

Q: What bolt size are these washers designed for?
A: They are designed for use with 5/16 in. USS bolts or screws.


Q: Are these washers suitable for outdoor use?
A: The zinc plating offers moderate corrosion resistance; for harsher outdoor environments, consider stainless steel.


Q: What does a flat washer do?
A: It distributes the load of a fastener to protect the material and improve fastener security.


Q: How many washers are included?
A: This retail package contains 100 washers.


Q: Will mixing finishes cause issues?
A: Yes, mixing different metal finishes can cause galvanic reactions; match finishes with your existing fasteners.


Streamlined Hardware with Subtle Shine

These zinc-plated washers bring a clean, understated gleam to your hardware palette, elevating everyday fastenings with thoughtful detail. Their flat, balanced profile reinforces surfaces while maintaining a refined, minimal look. Pair them with matching zinc hardware on exposed shelving or custom fixtures to keep the aesthetic cohesive. A small touch with a big impact—essential for polished, long-lasting installations.


Secure your projects with reliable, corrosion-resistant washers—add this 100-pack to your toolkit today.

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