This may have already been covered, but just to make sure, the chrome
bolts on my alloy 90 have a definitely more tapered shoulder and are
pretty different from my 83 steel-wheeled westy, and I doubt the heads
would fit into the recesses in the allow wheels. I don't know that for
sure but it's worth checking out. They are both where I could pull one
from each and measure them if you need me to.

Jim