Metric Washers

Metric washers are designed to fit metric fasteners, the sizes are specified in millimeters. The primary function of the metric washer is to provide a smooth, flat surface between the fastener and the surface, distributing load evenly. They are widely used in construction, automotive, machinery and engineering where threaded fasteners are utilised.

When considering a washer it's important to consider the inner diameter (ID) (matching the fastener diameter), the outer diameter (OD) (to distribute the load) and the thickness (to accommodate the desired gap or spacing).

Metric washers come in various types include plain/flat washers, spring washers, mudguard/repair washers, square plate washers, and toothed/shakeproof washers. We stock them in zinc, stainless, brass, nylon, and unplated self colour.

Inner diameter (i/d) sizes include: M1.2, M2, M2.5, M3, M3.5, M4, M5, M6, M7, M8, M10, M12, M14, M16, M18, M20, M22, M24, M27, M30, M33, M36, M39, M42, M48.