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