control linkage means connecting said indicator tab to said control means in such a manner that said control means moves said indicator tab from {TAIL ~ its first position} to its second position upon the achievement of a predetermined tension by said {HEAD ~ T bolt} 
control linkage means connecting said indicator tab to said control means in such a manner that said control means moves said indicator tab from { TAIL ~ its first position } to its second position upon the achievement of a predetermined tension by said { HEAD ~ T bolt }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD