{HEAD ~ a mating extension} that extends from the cross member and through one of {TAIL ~ the plurality} of openings defined in the wall of the housing, 
{ HEAD ~ a mating extension } that extends from the cross member and through one of { TAIL ~ the plurality } of openings defined in the wall of the housing ,
HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH