Thread: Hardware
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Old 10th Jun 2021, 9:36 pm   #3
Alistair D
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Join Date: Jan 2010
Location: Edinburgh, UK.
Posts: 2,008
Default Re: Hardware

Had the same problem recently. While searching I noticed that a couple of sites were calling them M8 form G as well as penny washers. It turns out that a standard has been set that defines the outside diameter and thickness. More information on Wikipedia.

https://en.wikipedia.org/wiki/Washer_(hardware)

Scroll down to type and form.

The standard applies to all makers so one company's Form C washer is the same as everyone else's. Tables for the different forms are readily available on the internet.

You learn something new every day.

Al
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