How to Size a Washer:
This can be a little confusing so we will do our best to try to make it a little easier to understand. When searching for a washer, firstly, let’s say you have a M6 bolt and you want a matching washer, look for washers with M6 at the beginning of the description. If you already have a washer and you are trying to match it, measure the inside, then look for a size slightly smaller that your measurement. For example if the inside measurement of the washer you measured is approximately 6.50mm, you need to look for a M6 washer. If the washer measured 17.25mm internally then you need a M16 Washer. Remember washers are not precision fasteners and variations in sizing do exist and all measurements on our site should only be used as a guide
Are Metric & Imperial Washers Interchangeable?:
In most cases they are universal. This is why we have included a metric sizing to the imperial chart and imperial sizing to the metric range. If you are still unsure or if the washer dimensions are critical then you need to measure and view the technical specifications table before ordering
Material / Coating Properties:
Nylon PA, PA6.6, 66 is the standard polymer used in a range of fasteners and is recognized worldwide for being the most suitable material for fasteners. It offers excellent filling qualities and hence is easily molded even into very difficult long shapes such as threaded rod. It provides good toughness, tensile strength and resistance to creep, particularly in the high temperature range. Nylon has excellent wear properties, low coefficient of friction and exceptional chemical resistance to aromatic hydrocarbons, greases and oils.
Nylon is a hygroscopic material which tends to absorb water or moisture from the surrounding environment. The amount of absorption will depend on the environmental conditions. When water or moisture is absorbed by Nylon, it behaves like a plasticizer in plastics reducing the tensile strength, stiffness; and increasing elongation, impact strength and energy absorbing characteristics. Outdoor weathering can be improved by the addition of carbon black. Nylon will perform well in long range service in most applications
Measuring a Washer:
Every effort has been made to ensure all measurements on our site are accurate and to the relevant standard, they should only be used as a guide. If you see a problem with our specifications please contact us. And when you make measurements, we STRONGLY recommend using a set of Vernier Calipers