original fitment type black steel washers
Posted: Wed Feb 22, 2017 7:49 pmDo these have any corrosion protection against rust ?
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original fitment type black steel washers
https://www.ilambretta.co.uk/forum/viewtopic.php?f=10&t=7784
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Posted: Wed Feb 22, 2017 7:49 pmRe: original fitment type black steel washers
Posted: Wed Feb 22, 2017 9:51 pmI think it's referred to as japan'd. I think that was the general idea. But I'm not sure how successful it is. It's old school.
Re: original fitment type black steel washers
Posted: Thu Feb 23, 2017 12:29 amI think they are dipped in oil when hot this gives a blueish black finish I use to do this to tools in metal work at school but I can't remember why, Japaning is a black weather resistant paint finish