Or, in {TAIL ~ an embodiment} in which {HEAD ~ the element holes} are formed through a solid bar, threaded holes might be formed in the bar in some embodiments 
Or , in { TAIL ~ an embodiment } in which { HEAD ~ the element holes } are formed through a solid bar , threaded holes might be formed in the bar in some embodiments
OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL REL OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH