The nut has first and second ends, the first end to engage the wheel of {HEAD ~ the automobile}, and {TAIL ~ a circumferential edge} intermediate the first and second ends 
The nut has first and second ends , the first end to engage the wheel of { HEAD ~ the automobile } , and { TAIL ~ a circumferential edge } intermediate the first and second ends
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH