how to make a capped nut...(acorn style)
here is a quick and easy way to make a capped nut flawlessly every time...
step one: dab finger in grease
step two: apply grease to bolt, last couple of threads and a conservative dollop on the end.
step three: weld in an rainbow pattern, building a "bridge" over the gap. watch the metal and you can kinda build it up like spray foam, or silly string...
LET IT COOL SLOWLY, THEN SHOCK IT WITH COOL WATER.