Abstract: A connector apparatus includes a fastener, upper and lower vibration dampers, and a retainer. Passages in the upper and lower dampers are receivable in alignment with corresponding apertures in a pair of upper and lower parts to be interconnected. The fastener has a head and a screw-threaded stem. The stem is receivable through the aligned passages and apertures to fasten the upper and lower dampers together with the upper and lower parts upon engagement of a nut on the stem. The retainer is configured to interconnect the fastener and the lower damper releasably with the upper damper in a preliminary arrangement prior to engagement of a nut on the stem.