For example, bolt 2 may have therein a suitable number, e.g. four, of preferably radial threaded bores 15, preferably equally spaced about {HEAD ~ the circumference} of {TAIL ~ bolt} 2 
of
For example , bolt 2 may have therein a suitable number , e.g. four , of preferably radial threaded bores 15 , preferably equally spaced about { HEAD ~ the circumference } of { TAIL ~ bolt } 2
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 HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL OTH