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What size is this washer in imperial?

RudeDogg1

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Dec 27, 2012
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Barnstaple, Devon
I'm after a load of washers but not sure what they are in imperal coding they are about 4mm internal 9 outer and 1 thick. I'm crap at working out their coding
 
I'm not sure I follow, but why not just measure what you want using an imperial tape measure / ruler, rather than converting from metric? Or do you mean you don't understand imperial measurements at all ?
 
Here you go Sunshine.

http://www.engineering.com/Library/ArticlesPage/tabid/85/ArticleID/118/Washer-Size-Chart.aspx

The top washer which is a #6 has dimensions of 5/32" hole, 3/8" diameter and 3/64" thickness.
In sensible terms that is 4mm hole, 9.5mm diameter and 1.2mm thick.

So you need a #6 washer.

Cheers oddly I got some #6 and the hole in the middle was right but the outside was tiny compared to the original so I assumed #6 just referred to the bolt size it would fit.
 
Cheers oddly I got some #6 and the hole in the middle was right but the outside was tiny compared to the original so I assumed #6 just referred to the bolt size it would fit.
That's unusual because I've always found imperial washers to generally have a bigger diameter to hole ratio than metric.
 
Andy at pinball mania is very helpful with sourcing the original sized washers, screws etc etc
 
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