Originally the starter would have a a copper contact sticking up that the switch you see on buds went over, with another contact inside it to amek the connection. Your starter has appartenlty been converted for use with a relay by replacing the copper contact stud with a bolt. A sarter shop can conver ti back, or you cna jsut go ahead and use the relay.
"The Constitution is not an instrument for the government
to restrain the people, it is an instrument for the people to restrain the
government lest it come to dominate our lives and interests." Patrick Henry