Both such adjustments can thus be readily achieved from the exterior of the device by {HEAD ~ simple manipulations} on the head of {TAIL ~ the bolt} 
Both such adjustments can thus be readily achieved from the exterior of the device by { HEAD ~ simple manipulations } on the head of { TAIL ~ the bolt }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL