The shoulder nut 44 helps to minimize static load stress created by {TAIL ~ the off set center} of gravity of {HEAD ~ the mounted object} O 
The shoulder nut 44 helps to minimize static load stress created by { TAIL ~ the off set center } of gravity of { HEAD ~ the mounted object } O
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH