Assuming it's stranded .. .. .. separate the strands into two smaller
bundles .. .. twist the strands in each bundle together and secure each
one under it's own screw.

sparty wrote:
I just put a subpanel in my garage, have a 60amp breaker in it, and ran
4 guage wire to my basement where the main breaker panel is. In the
main panel, I have the 60amp breaker installed with both hot wires in
it, and I have the ground wire in the bus panel as well. However, when
I went to put the neutral wire in the bus panel as well, it's too big
it appears!!

Now what??

Thanks, James