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