A long time ago when I was building my 48 Ford, I ran across some "washers" for allen head bolts. These were shaped like a cup and had a hole in the middle for the allen head bolt to go into. The purpose of these "washers" was to increase the contact area of the head of the allen bolt. I am in need of some of these again, but don't know where to find them. I checked McMaster-Carr, Grainger and Mr Gasket with no luck. Any one heard of these and know where I can get some? Thanks

54 Victoria 312;  48 Ford Conv 302, 56 Bird 312
Forever Ford
Midland Park, NJ