{TAIL ~ Two positioning bolts} extend through the collars and are threadedly connected to {HEAD ~ the two ends} of the axle 
{ TAIL ~ Two positioning bolts } extend through the collars and are threadedly connected to { HEAD ~ the two ends } of the axle
TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH