washers for 350 Jumbo Rivets from OTB

[esantoro]

Does anyone know of good source for washers to use in peening or rolling over the #350 Jumbo Rivets from OTB?

I'm running low on my current #L-1125 washers from OTB and am thinking that OTB's price seems a bit high for washers. Furthermore, the .205"-diameter hole in these washers is a bit wide for the .175" post of the jumbo rivet. I'll try the usual places -- Home Depot and Lowes -- but thought I'd ask around to see ifanyone has been in a similar situation and knows of a better and less expensive washer.

Thanks,

Ed

[esantoro]

I found zinc washers at The Home Depot, but feel that these might rust too easily and stain the leather. Hanson rivets has black-oxide finished steel washers at an inside diameter of .194", a better fit with 3/16" tubular rivet posts. Does anyone foresee a problem with this kind of finish?

Ed