Bright Zinc Plated Steel Plain Washer, 3mm Thickness, M20

RS Pro steel plain washers are generally used with a machine threaded fastener and nut to spread the load over a greater surface area when tightening a bolt, screw or nut.

560-316 is an M2 zinc plated steel washer

RS Pro washers are an essential part of any fastener assembly. As they serve to incorporate spacing and distribute load when placed between a nut and bolts. These washers will help prevent wear and distortion of installation surfaces over time.

• Steel with galvanised finish
• Construction for durability
• Suitable for screw/bolt size M2 to M20
• Available in a range of metric sizes

RS Pro washers are an essential part of any fastener assembly. Use them to make maintenance easier by allowing for smoother loosening and tightening of components. Ideal for use in many electronic, food, chemical and construction applications.

Form A is a British Standard indicator for the metric outer diameter and thickness of a steel washer. It is a quick reference that in this case indicates a type of washer with a 'normal' diameter and thickness. Form A washers are suitable for most applications.

Other than standard washers, you might also hear washers referred to as fender washers, penny washers and mudguard washers. These 'repair washers' have a larger external diameter in comparison to the inner diameter, meaning a larger distribution of surface area. They can be used with a worn fixing hole or to fasten larger surface areas.

RS PRO aims to be your go-to brand for reliability and value for money. We source great parts at great prices and test everything with our in-house experts to ensure the quality you need. When it comes to tools and fasteners, we know that versatility and dependability are what you need. As such, we stock a variety of mainstay and specialist fasteners and couplers to suit any application. Whether you're a professional electrician, plumber, builder or DIY enthusiast, RS PRO is here to support you.

Washers are used to distribute the force of the screw head of a screw or nut on a larger surface.

BS4320