{HEAD ~ A distraction screw} is mounted through the cylinder and with {TAIL ~ one end} resting on the chamber 
is mounted with
{ HEAD ~ A distraction screw } is mounted through the cylinder and with { TAIL ~ one end } resting on the chamber
HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL REL OTH OTH OTH OTH REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH