Fernando Mendes Posted June 22, 2022 Report Share Posted June 22, 2022 The flat side of the copper washer is toward the screwhead or..... Quote Link to comment Share on other sites More sharing options...
Plymouthy Adams Posted June 22, 2022 Report Share Posted June 22, 2022 what copper washer are you referring to? sound as it is not just a standard flat washer or standard application.....a standard flat copper washer (common to brake banjos etc) has the same properties each side...your question point to something altogether different and of special intent. Quote Link to comment Share on other sites More sharing options...
Fernando Mendes Posted June 22, 2022 Author Report Share Posted June 22, 2022 It has a round and a flat side. Quote Link to comment Share on other sites More sharing options...
ggdad1951 Posted June 22, 2022 Report Share Posted June 22, 2022 Looks like a stamp formed washer so you have slight roll in on one edge and sharp on the other. Personally, I put the round edge against the larger flat surface and the sharp edge by the bolt head, as any deformation of the parent material in the stamping process will create a SLIGHT concavity/convexity. 1 Quote Link to comment Share on other sites More sharing options...
lostviking Posted July 5, 2022 Report Share Posted July 5, 2022 Not to just be contrary, but I always put the rounded side towards the head of the bolt. The bolt has less surface to be making contact. The flat thing you are putting the washer against has the larger area. That is just my thinking, I've not read anything specific either way. 1 Quote Link to comment Share on other sites More sharing options...
ggdad1951 Posted July 5, 2022 Report Share Posted July 5, 2022 its a crush fitting so likely doens't REALLY matter. Quote Link to comment Share on other sites More sharing options...
lostviking Posted July 13, 2022 Report Share Posted July 13, 2022 Completely agree in this case. I am just a creature of habit, and that's how I've always installed washers...and why I make that choice. Quote Link to comment Share on other sites More sharing options...
TravisL17 Posted July 14, 2022 Report Share Posted July 14, 2022 This thread made me think of this picture I saw a while back. Makes me laugh as I also have a preference on washer direction. It likely doesn't matter much, it's more of a habit and being particular. 1 Quote Link to comment Share on other sites More sharing options...
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