This second part 4 has, on {TAIL ~ its end side}, {HEAD ~ a recess} 5 into which, during the application, the cap part 2 is introduced, centered and clamped in place 
on
This second part 4 has , on { TAIL ~ its end side } , { HEAD ~ a recess } 5 into which , during the application , the cap part 2 is introduced , centered and clamped in place
OTH OTH OTH OTH OTH OTH REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH