Washers

At South Coast Fasteners, we offer a wide variety of washers tailored to meet the demands of industries ranging from construction and manufacturing to automotive and marine. Whether you need heavy-duty structural washers or corrosion-resistant stainless steel options, our selection delivers the strength and precision your projects require.

• Structural Washers
  Structural washers, also known as heavy-duty washers, are designed for use in structural applications where high strength and load-bearing capacity are required. They feature a large outer diameter and a thick profile to distribute the load over a wider area, reducing the risk of bolt or surface failure. Structural washers are commonly used in construction, bridge building, and infrastructure projects.

• Flat Washers
  Flat washers are the most common type of washer, featuring a flat, circular shape with a centrally located hole. They are used to distribute the load of a fastener, such as a bolt or nut, over a larger area, preventing damage to the surface being fastened. Flat washers are available in various materials and thicknesses to suit different applications.

• Flat Washers (Thru Hardened)
  Thru-hardened flat washers undergo a heat-treating process to increase their hardness and strength. This makes them suitable for use in high-stress applications where standard flat washers may deform or fail under load. Thru-hardened flat washers are commonly used in automotive, machinery, and industrial applications.

• Flat Washers (Stainless)
  Stainless steel flat washers provide corrosion resistance and durability in harsh environments. They are commonly used in marine, food processing, and outdoor applications where exposure to moisture or chemicals is a concern. Stainless steel flat washers are available in various grades, including 18-8 (Type 304) and 316 stainless steel, offering different levels of corrosion resistance.

• Lockwashers
  Lock washers are designed to prevent nuts and bolts from loosening due to vibration or torque. They feature a split or toothed design that creates tension between the fastener and the surface being fastened, preventing rotation and loosening. Lock washers are available in various types, including split washers, toothed washers, and wedge lock washers, each offering unique locking mechanisms.

• Lockwashers (Stainless)
  Stainless steel lock washers provide corrosion resistance and durability in harsh environments. They are commonly used in marine, aerospace, and chemical processing applications where exposure to moisture or chemicals is a concern. Stainless steel lock washers are available in various types and sizes to suit different requirements.

• Round Plate Washers
  Round plate washers feature a flat, circular shape with a centrally located hole and a larger outer diameter compared to standard flat washers. They are used to distribute the load of a fastener over a larger area, reducing the risk of surface damage or failure. Round plate washers are commonly used in timber construction and framing applications.

• Round Malleable Washers
  Round malleable washers are made of malleable iron, a ductile material that can deform and conform to irregular surfaces. They feature a flat, circular shape with a centrally located hole and are used to distribute the load of a fastener over a larger area. Round malleable washers are commonly used in wood construction, fencing, and railroad applications.

• Square Washers
  Square washers have a square shape instead of a round shape, preventing them from rotating when tightened. They are used to distribute the load of a fastener over a larger area and are commonly used in wood or other soft materials where a standard washer might embed itself.

• Countersunk Finishing Washers
  Countersunk finishing washers, also known as finishing cup washers or countersunk washers, are designed to provide a finished appearance and a flush surface when used with countersunk screws or bolts. They feature a tapered profile that fits into the countersunk hole, concealing the fastener head and providing a smooth, finished look. Countersunk finishing washers are commonly used in woodworking, cabinetry, and furniture assembly.

• Shear Plate Washer
  Shear plate washers, also known as timber connectors or timber washers, are used to provide additional bearing area and load distribution in timber construction applications. They feature a large, flat surface with serrations or teeth on one side to grip the wood and prevent slipping under load. Shear plate washers are commonly used in timber framing, decking, and bridge construction.

• Nylon Washer
  Nylon washers provide insulation, cushioning, and vibration resistance in electrical and automotive applications. They are made of nylon, a lightweight and durable material that offers excellent electrical insulation properties. Nylon washers are commonly used in electrical panels, automotive engines, and plumbing fixtures.

• Silicon Bronze
  Silicon bronze washers provide superior corrosion resistance and strength compared to other bronze alloys. They are commonly used in marine, architectural, and artistic applications where exposure to saltwater or harsh environments is a concern. Silicon bronze washers are also known for their attractive appearance and ability to develop a natural patina over time.

Applications and Amenities

Washers are critical in virtually every industry, providing load distribution, corrosion resistance, and vibration dampening. They keep structures stable in construction, support machinery assembly in manufacturing, protect delicate parts in automotive and aerospace sectors, and endure harsh environments in marine and railroad applications. For home improvement and DIY projects, washers ensure secure and lasting connections.

Material and Grades

• Standard Steel Washers (Grade 2)
  Basic low to medium carbon steel washers for general use.

• Hardened Steel Washers (Grade 5)
  Heat-treated medium carbon steel for moderate strength needs.

• Extra Thick Washers (Grade 8)
  Heat-treated alloy steel washers for heavy-duty, high-strength applications.

• Stainless Steel Washers
  Corrosion-resistant and durable, available in grades 18-8, 316, and 17-4 PH.

• Brass Washers
  Corrosion-resistant and electrically conductive, suited for decorative and functional uses.

• Aluminum Washers
  Lightweight with corrosion resistance, ideal for aerospace and automotive.

• Bronze Washers
  Excellent conductivity and corrosion resistance for electrical and plumbing uses.

• Nylon Washers
  Insulating, chemical-resistant, and vibration-damping for electrical and automotive needs.

Plating Options

• Zinc Plating
  Corrosion protection for general-purpose washers.

• Hot-Dip Galvanizing
  Thick, durable coating for outdoor and harsh conditions.

• Cadmium Plating
  Excellent corrosion resistance, mostly aerospace/marine but restricted due to toxicity.

• Nickel Plating
  Corrosion resistance with decorative finish for aesthetic uses.

• Chrome Plating
  Shiny, corrosion-resistant finish for automotive and furniture.

• Black Oxide Coating
  Matte black finish with corrosion resistance, popular in firearms and machinery.

Why Choose South Coast Fasteners?

At South Coast Fasteners, we understand that dependable fastening starts with the details. That’s why we stock washers from trusted manufacturers, offering consistent quality, industry-grade materials, and finishes you can rely on. With decades of experience supporting professionals across all industries, our team is ready to help you select the perfect washer for your application and keep your projects running smoothly.

Order Washers Online Today

Browse our extensive inventory of washers online and get exactly what you need, when you need it. Whether you’re outfitting a large infrastructure project or handling a quick repair, South Coast Fasteners delivers fast shipping, expert guidance, and the dependable products to get the job done right.