Metric fasteners seem simple enough until it’s time for you to actually select the exact kind that you need. There are actually a wide variety of types, styles and grades to choose from. This is not only true of metric bolts or metric screws – it also applies when you’re looking for the right metric washer for the job. Flat washers, curved washers, split washers, internal and external washers – what’s the difference?
Let’s take a look at the various categories offered by Mr. Metric. Our best seller is the good old flat washer, a thin, flat metal sphere with a large hole cut in its center. This versatile washer provides plenty of tension between the head of a screw or nut and the substrate for general-purpose applications. Curved washers and wave washers exert a lighter thrust load than flat washers and are used in rotating mechanisms such as bearings, motors and seals.