When holes are used for antenna element attachment, the precise attachment configuration may vary from that of FIG 2b, in which a screw is used to attach {TAIL ~ an element} having {HEAD ~ a threaded hole} 
When holes are used for antenna element attachment , the precise attachment configuration may vary from that of FIG 2b , in which a screw is used to attach { TAIL ~ an element } having { HEAD ~ a threaded hole }
OTH OTH OTH OTH OTH 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 OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD