Square Washers

Square washers provide a larger bearing surface area than traditional round washers. Their square shape allows them to fit into slots and channels, preventing rotation and ensuring a secure hold. Made typically from steel, square washers can be corrosion-resistant, especially with an additional hot-dipped galvanized finish, and are suitable for both indoor and outdoor use. They are particularly effective in applications requiring greater load capacity, as they distribute the force of a bolt or screw over a wider area. This feature makes them a preferred choice in mechanical equipment assembly and wood construction, where they create more friction when tightening, which enhances stability.

Square washers are essential in construction, plumbing, electrical, automotive, and other industries for their ability to increase stability and prevent loosening. They are commonly used with concrete anchor bolts, carriage bolts (to secure roof trusses), and in various other applications where a larger surface area is needed. The flat sides of square washers can prevent them from turning, making them ideal for situations where space constraints or specific alignment is required.

Their larger surface area and square shape prevent rotation and distribute the load more effectively than traditional round washers, which are better suited for lighter, more general-purpose use.

Square washers tend to be thicker than standard round washers, which contributes to their use in heavier duty applications. They have several thickness options available and are typically thicker for larger bolt diameters.