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SKU: ABW516

5/16" Conquest USS Flat Washers - Plain Finish

5/16" Conquest USS Flat Washers - Plain Finish!

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Nuts and Washers

SKU: ABW516

5/16" Conquest USS Flat Washers - Plain Finish

$0.08
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Finish:

Plain Hot Dip Galvanized Zinc

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Specifications

Diameter: 5/16"
Thickness: 0.104" - 0.064"
Outside Diameter: 0.868" - 0.905"
Inside Diameter: Basic: 0.375" Max: 0.390" Min: 0.370"
Thread Type: Coarse
Material: Carbon Steel
Finish: Plain
Measuring System: USS
Manufacturer Name: Conquest Fasteners
Quantity: Single
Description

5/16" Conquest USS Flat Washer – Plain Finish

The 5/16" USS washer offers expanded coverage beneath bolts to prevent material damage and pull-through. Its plain finish is cost-effective and suitable for controlled indoor environments. Built to USS spec, it delivers reliable performance in assembly, bracing, or mechanical repairs. Compatible with 5/16" coarse-threaded fasteners.

For best results, always match your washer, bolt, and nut material and finish to ensure proper fit and performance.

5/16" USS Washer for General Assembly and Support

Ideal for construction, utility work, or repair benches, this washer handles frequent torque and vibration without compromising your material. The wide bearing surface distributes pressure evenly across substrates. Use it to reinforce joints, protect paint or finishes, and maintain alignment. Dependable for structural and light-duty industrial installs.

Key Features

  • USS Dimensions: Broader OD than SAE for superior coverage.
  • 5/16" Hole Size: Fits standard coarse-thread bolts.
  • Uncoated Steel: Works well where moisture exposure is minimal.
  • Rigid Design: Reduces embedment under load.
  • Common Fit: Widely used across building trades.

Common Applications

  • Fixture and frame connections
  • Structural tie-downs
  • General fabrication
  • Industrial service work
  • Heavy equipment repair

Installation Tips

  • Use with matching bolts and nuts for proper load distribution.
  • Position washer between fastener head and material surface.
  • Tighten to torque spec to prevent loosening or material damage.
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× WARNING: This product can expose you to chemicals which are known to the State of California to cause cancer, birth defects and other reproductive harm. For more information visit: www.P65Warnings.ca.gov.

Customer Reviews

Based on 33 reviews
97%
(32)
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3%
(1)
S
Stephen Redwine
1/2" Galvanized flat washers

Excellent qualilty, arrived very quickly, packaged well, reasonably priced. What else can one expect?

T
Thomas Cottle
Bolts, Nuts and Washers

Fast shipping and greats prices!

J
J.B.

GREAT SERVICE