{HEAD ~ The two lateral, elastic retaining elements} are joined in integral manner at their rear ends away from the support shaped section and are mounted in {TAIL ~ a clamping lock housing} also receiving the central retaining element and the rotatable tightening system 
are mounted in
{ HEAD ~ The two lateral , elastic retaining elements } are joined in integral manner at their rear ends away from the support shaped section and are mounted in { TAIL ~ a clamping lock housing } also receiving the central retaining element and the rotatable tightening system
HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH REL REL REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH