Returning to FIG 10, it is seen that the nuts 218, 230 are elongated in {HEAD ~ length} for {TAIL ~ easy grasping} and include wings 234 which enable a person to easily thread it on and off 
for
Returning to FIG 10 , it is seen that the nuts 218 , 230 are elongated in { HEAD ~ length } for { TAIL ~ easy grasping } and include wings 234 which enable a person to easily thread it on and off
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH