Plate washers are metal plates with a hole in the center used with bolts and other fasteners for heavy-duty applications. They improve the security, strength, and support of the connection, prevent crushing, and distribute the load. They come in different sizes, shapes, and thicknesses, and can be painted or left unfinished. They can also be used for aesthetic appeal.
A plate washer is a type of hardware used with a variety of bolts and other fasteners. It consists of a round or square metal plate with a hole in the center to fit the fastener. Plate washers tend to have a thicker and heavier construction than a standard washer, making them suitable for heavy-duty applications. Using a plate washer improves the security of the connection and adds strength and support. Manufacturers produce a wide variety of plate washer sizes and designs to meet the needs of different types of installations.
When installing a sheet metal washer, builders begin by drilling a hole in the material to be fastened. They then slide the plate washer over the material until the hole in the washer lines up with the hole they just drilled in the material. The installer then inserts the bolt through the holes and tightens it using a wrench or similar tool. The sheet metal washer prevents the bolt head from crushing the underlying material, both during installation and after.
A plate washer also improves the seal between the bolt and the material, increasing the strength and life of the connection point. This helps prevent the wood from splitting in a windowsill application, for example, and maximizes the chance that the connection will last. It also distributes the load over a larger area, reducing the force directed at the fastener and surrounding area.
Slab washers are available in many sizes and thicknesses, as well as different shapes and profiles. Thicker or larger plates may be required for larger scale applications, while smaller units may be appropriate for more basic designs or lighter loads. Steel plates can be used in many interior applications, while galvanized or stainless models may be needed in areas prone to moisture to prevent rust or corrosion. The plates can be painted to match the bolts or surrounding surfaces or left unfinished.
When used on wooden structures, the washer is often left exposed. Installers can choose round or square units to create the desired look and to complement the fastener design. Some plate washers also feature a pointed or beveled appearance to enhance the aesthetic appeal of the installation. Others feature a decorative design or special finish, including copper, brass and chrome. To enhance the attractiveness of the design, a plate washer can be used simply for aesthetic appeal, even when it is not needed to improve strength or stability.
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