isolation insert as a permanent component of the monument panel assembly plate and or composite panel hereafter collectively called monument this insert device is assembled with an internal elastomer with dampening characteristics that can be modulated to accommodate different frequencies its various embodiments allow for an infinite number of permutations for example the fastener inserts are used in floor panels to fasten the floor panel to a structural floor track or beam other uses are to fasten seats galleys overhead lockers bulkheads lavatories and the like the invention includes an elastomeric part within the fastener insert to isolate for example the floor from structural vibration within the main structural framework of the aircraft and thereby make the passenger compartment more comfortable and pleasing to the passenger the basic design of one embodiment of a panel assembly with the vibration isolation insert in place is as shown in cross section in fig1 fig2 a shows the upper flange in perspective view fig2 b shows the lower flange in perspective view showing slots which are adapted to engage anti rotation projections on the bushing fig2 d shows the lower flange in perspective view fig2 e shows the hub without the bushing the hub being partially broken away fig3 shows one application of the vibration isolation insert of fig2 fig4 shows another application of the vibration isolation insert of fig3 turning to fig1 in more detail the insert 10 is adapted to be received in a hole 12 drilled in.