USS Washers (Flat)

South Coast Fasteners, Inc. supplies USS flat washers that are designed to distribute load, protect surfaces, and improve the strength of fastened joints. With larger outer diameters than SAE washers, USS flat washers spread pressure over a broader area, making them ideal for heavy-duty applications. They are widely used in construction, automotive, and industrial projects where stability and durability are essential. By helping prevent pull-through and reducing stress on base materials, USS washers play a critical role in keeping connections secure.

Get Superior-Quality Fasteners at Competitive Prices

Use the options below to find the fasteners you need in the quantities required for your application. Questions? Contact us today, and our team will gladly assist you in finding the best fastening solutions for your requirements. With South Coast Fasteners, you can count on helpful support, competitive pricing, and top-quality products for all your fastener requirements.

Types of USS Flat Washers We Offer

USS Flat Washer Plain

Plain USS flat washers are the simplest option, designed to spread load and protect surfaces beneath nuts and bolts. They are most often used in indoor construction or maintenance projects where corrosion resistance is not required. Contractors rely on plain washers for their affordability and consistent performance in everyday fastening tasks. Their straightforward design makes them a staple across residential and commercial jobs.

USS Flat Washer Zinc Clear Cr+3

Zinc clear Cr+3 USS flat washers offer a bright, smooth finish that resists corrosion and wear. This coating extends the life of the washer, ensuring connections remain strong and reliable. They are commonly used in commercial and industrial applications where appearance and moderate protection are both important. Installers choose them for a balance of performance, durability, and clean presentation.

USS Flat Washer Zinc Yellow Cr+6

Zinc yellow Cr+6 USS flat washers provide enhanced corrosion resistance along with a distinctive golden finish. The coating is thicker and more durable than clear zinc, making these washers useful in environments with greater exposure. Contractors appreciate yellow zinc washers for their long service life and easy identification on job sites. Their combination of strength and visibility makes them versatile for many industries.

USS Flat Washer HDG

Hot-dip galvanized USS flat washers are coated with a heavy layer of zinc that delivers maximum corrosion resistance. They are engineered for outdoor, marine, and structural applications where constant exposure to moisture and weather demands superior protection. Builders use HDG washers in bridges, infrastructure, and heavy-duty projects where long-term reliability is essential. Their rugged build ensures load distribution remains secure under extreme conditions, making them the preferred choice for demanding environments.

USS Washers (Flat) - Material Options

South Coast Fasteners stocks USS flat washers in materials that balance strength, economy, and ease of use for a variety of applications.

Steel

Steel USS flat washers deliver strong, reliable load distribution and are a staple in construction, automotive, and heavy equipment assembly. They are chosen for projects where durability under load is critical and where washers must handle constant vibration, stress, or torque. Steel provides the toughness to handle demanding conditions at an economical cost.

Low Carbon Steel

Low carbon steel USS flat washers provide dependable everyday performance at a cost-effective price point. They are easy to machine and install, making them a practical option for light-to-medium duty work. These washers are often used in framing, general construction, and maintenance where reliability is needed without the expense of higher-grade materials.

USS Washers (Flat) - Available Finishes

South Coast Fasteners offers USS flat washers in finishes that improve corrosion resistance, extend service life, and adapt washers for different environmental conditions.

Yellow Zinc Cr+6

Yellow zinc Cr+6 plating provides both corrosion resistance and high visibility. The bright golden finish makes washers easy to identify during installation while adding a layer of protection against rust. They are widely used in automotive, electrical, and construction applications.

Hot Dip Galvanized

Hot dip galvanized washers are coated in a thick layer of zinc that shields steel from moisture, soil, and weathering. This finish is the preferred choice for outdoor projects, marine environments, and infrastructure work where corrosion resistance is non-negotiable.

Plain

Plain USS washers are supplied without coating, leaving the raw steel exposed. They are used in controlled indoor environments, for welding applications, or where washers will be painted or treated after installation. Restoration projects also benefit from plain washers to replicate the look of original hardware.

Zinc Cr+3

Zinc Cr+3 provides reliable corrosion resistance with a clean, polished look. It is one of the most commonly used finishes, balancing cost and performance. Zinc Cr+3 is well suited for general construction, industrial fabrication, and consumer goods where washers may remain visible and need to maintain both appearance and strength.

Why Choose South Coast Fasteners?

South Coast Fasteners is committed to supplying USS flat washers that meet the highest standards of performance. Our washers are sourced to deliver dependable strength and corrosion resistance, ensuring your fasteners hold securely in place. With a deep inventory, fast shipping, and expert guidance, we make sure you have access to the right washers for any project — from commercial buildings and industrial machinery to automotive repairs and maintenance.

Order USS Flat Washers Online Today

South Coast Fasteners makes ordering USS flat washers quick and convenient. Browse our online selection to find the exact size, material, and finish you need, or contact our team for help with specifications, bulk orders, or technical questions. Whatever the application, we are here to provide the washers that keep your fasteners secure and your projects moving forward.