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SKU: ABW12-SS

1/2" Conquest USS Flat Washer - 18-8 Stainless Steel

1/2" Conquest USS Flat Washer - 18-8 Stainless Steel!

  • 1/2" Conquest USS Flat Washer - 304 Stainless Steel

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Nuts and Washers
SKU: ABW12-SS

1/2" Conquest USS Flat Washer - 18-8 Stainless Steel

$0.50
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Diameters:

1/4" 5/16" 3/8" 1/2" 5/8" 3/4" 7/8" 1"

Type:

18-8 Stainless Steel 316 Stainless Steel

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Specifications

Diameter: 1/2"
Thickness: .086" - .132"
Outside Diameter: 1.368" - 1.405"
Inside Diameter: .557" - .577"
Thread Type: Coarse
Material: 18-8 Stainless Steel
Finish: Plain
Type: 18-8 Stainless Steel
Measuring System: USS
Manufacturer Name: Conquest Fasteners
Quantity: 1 Washer
Description

1/2" Conquest USS Flat Washer - 18-8 Stainless Steel

This 1/2" USS flat washer is a rugged solution for medium- to heavy-duty applications in corrosive environments. Crafted from 18-8 stainless steel, it provides the strength to support large fasteners while resisting rust, pitting, and chemical degradation. Its wide surface helps stabilize connections and prevent bolt heads or nuts from damaging underlying materials. Perfect for exposed fastenings in structural, industrial, or marine settings.

Always confirm washer and bolt compatibility prior to installation for optimal load distribution.

1/2" USS Flat Washer – Reliable in Harsh Conditions, Built to USS Standards

Count on this washer when strength and corrosion resistance are critical to the success of your build. It works anywhere durability and surface protection are required.

Key Features

  • Premium Stainless Build: Made from 18-8 alloy to endure moisture, heat, and chemical exposure.
  • Enhanced Load Spread: Protects softer materials under compression.
  • Precision-Machined: Sized for 1/2" coarse-thread fasteners.
  • Wide-Diameter Profile: Reinforces joints under torque and load.
  • Indoor/Outdoor Ready: Performs in kitchens, shipyards, framing, and more.

Common Applications

  • Outdoor framing and marine docks
  • Food-safe environments
  • Heavy-duty HVAC systems
  • Deck railing and baluster installations
  • Machine frame assembly

Installation Tips

  • Pair with 18-8 stainless bolts for long-term corrosion protection.
  • Ensure flush contact to distribute clamping force evenly.
  • Tighten gradually to avoid warping materials or overloading threads.
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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 10 reviews
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j
jeff w
Quality parts - good price

Needed some stainless steel fasteners for my gate refresh and the local stores didnt have the correct size and would have been more costly.

W
WILLIAM WAY JR
Excellent!

I purchased a few 7" SS bolts, nuts and washers for them for my boat. The order total was minimal and it was online and my first time using Fasteners Plus, so I wasn't sure when or if I would get them. However.....there were constant email updates from order acceptance to delivery and everything came well packaged and in good form. If my experience is indicative of their usual service, they are top notch and I run an aerospace fastener business for a living.

M
MICHAEL O'DONNELL
Excellent Quality, On Time and Great Price

Could not find what I needed locally, Fasteners Plus had it and got it to me promptly. Thanks for your excellent service and products.

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