Washers

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.

Brass: Brass washers are made of brass, a copper alloy known for its corrosion resistance and electrical conductivity. They are commonly used in plumbing, electrical, and decorative applications where appearance and conductivity are important. Brass washers are available in various sizes and thickness.
 
 

Applications and Amenities

Washers are indispensable components in a wide array of applications across industries, offering essential amenities for secure fastening solutions. Within construction, washers distribute the load of fasteners such as bolts and nuts, enhancing the stability and integrity of structures like buildings, bridges, and infrastructure. In manufacturing, washers play a crucial role in machinery and equipment assembly, ensuring proper alignment and reducing the risk of loosening under vibration or stress. The automotive industry relies on washers to provide additional support and prevent damage to delicate components, contributing to the safety and reliability of vehicles. In aerospace, washers meet stringent standards for precision and reliability, essential for securing critical aircraft structures and systems. Marine applications demand corrosion-resistant washers to withstand the harsh conditions of saltwater environments, ensuring the longevity and durability of marine vessels and offshore structures. Railroad construction depends on washers for maintaining the safety and stability of railway tracks, preventing loosening and maintaining proper tension in fasteners. In the oil and gas industry, washers endure extreme temperatures and pressures in drilling rigs, pipelines, and refineries, ensuring the integrity and safety of infrastructure. Renewable energy projects utilize washers to secure structural components in wind turbines and solar panels, providing stability and reliability in renewable energy installations. Across various infrastructure projects, washers offer dependable support and reinforcement, withstanding environmental factors such as vibration, wind, and seismic forces. Finally, in DIY and home improvement tasks, washers provide essential reinforcement for furniture assembly, plumbing installations, and general repairs, ensuring strong and secure connections in household projects.

Material and Grades

Washers are available in several different grades, each offering specific properties and characteristics to suit different application requirements. When selecting the appropriate grade of washers for your application, consider factors such as required strength, corrosion resistance, and environmental conditions. We offer a wide range of washers in various grades to meet the diverse needs of our customers across different industries.
 
Standard Steel Washers (Grade 2): Grade 2 steel washers are the most basic type of washer and are typically made from low or medium carbon steel. They offer basic strength and are suitable for general-purpose applications where high strength is not required.

Hardened Steel Washers: Grade 5 steel washers are made from medium carbon steel and are hardened and tempered to achieve higher strength and hardness. They are commonly used in applications where moderate strength and durability are required, such as automotive and machinery.

Extra Thick Washers (Grade 8): Grade 8 steel washers are the highest grade of standard steel washers, offering exceptional strength and durability. They are made from medium carbon alloy steel and are heat-treated to achieve their high strength. Grade 8 washers are commonly used in heavy machinery, construction, and structural applications.

Stainless Steel Washers: Stainless steel washers are corrosion-resistant and offer excellent durability, making them ideal for applications where exposure to moisture, chemicals, or high temperatures is a concern. Common stainless-steel grades used for washers include 18-8 (Type 304), 316, and 17-4 PH stainless steel, each offering varying levels of corrosion resistance and strength.

Brass Washers: Brass washers provide good corrosion resistance, electrical conductivity, and aesthetic appeal. They are commonly used in electrical, plumbing, and decorative applications where appearance and conductivity are important.

Aluminum Washers: Aluminum washers are lightweight and offer good corrosion resistance and thermal conductivity. They are commonly used in automotive, aerospace, and construction applications where weight reduction and corrosion resistance are critical.

Bronze Washers: Bronze washers offer excellent electrical conductivity and thermal conductivity. They are commonly used in electrical and plumbing applications where conductivity and corrosion resistance are important.

Nylon Washers: Nylon washers are non-metallic washers made from nylon material. They offer good insulation properties, chemical resistance, and vibration damping. They are commonly used in electrical, plumbing, and automotive applications.
 

Plating Options

South Coast Fasteners provides a diverse selection of plating options, ensuring that you have the flexibility to choose the most suitable option for your specific application or industry requirements. Whether you need corrosion resistance for outdoor use, a decorative finish for architectural projects, or enhanced durability for industrial applications, we have the right plating solution to meet your needs. Here are common plating options available for washers:
 
Zinc Plating: Zinc plating provides corrosion resistance to washers by forming a protective layer of zinc on the surface. It is one of the most common plating options and is suitable for general-purpose applications.

Hot-Dip Galvanizing: Hot-dip galvanizing involves immersing the washers in molten zinc to provide a thicker, more durable coating than traditional zinc plating. It offers superior corrosion resistance and is ideal for outdoor or harsh environments.

Cadmium Plating: Cadmium plating offers excellent corrosion resistance and lubricity. However, cadmium is toxic and environmentally hazardous, so its use is restricted in many industries.

Nickel Plating: Nickel plating provides corrosion resistance and a decorative finish. It is commonly used in applications where appearance is important, such as automotive and architectural hardware.

Chrome Plating: Chrome plating provides corrosion resistance and a shiny, decorative finish. It is often used in automotive and motorcycle applications for its aesthetic appeal.

Black Oxide Coating: Black oxide coating provides corrosion resistance and a sleek, black finish. It is commonly used in automotive, firearms, and machinery applications for its durability and aesthetic appeal.

Contact South Coast Fasteners today for all your socket and screw needs.