{TAIL ~ a fastening cap} having {HEAD ~ a bore} formed therein, said bore having a portion defined by a tapered inner wall portion, said tapered inner wall being brought into abutment with said corned portion of said holder upon coupling of said fastening cap and said horn 
{ TAIL ~ a fastening cap } having { HEAD ~ a bore } formed therein , said bore having a portion defined by a tapered inner wall portion , said tapered inner wall being brought into abutment with said corned portion of said holder upon coupling of said fastening cap and said horn
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 OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH