Racks and mountings specifically adapted for use with scientific, nautical, surveying, photographic, cinematographic, optical, weighing, measuring, signalling, checking in the nature of supervision, electronic home security, electronic office security, namely, racks and mountings specifically adapted for use with audio, visual, computer and/or telecommunications equipment, namely, audio amplifiers, audio mixers, audio/visual special effects units, graphic equalizers, electronic video signal switchers, digital media streaming devices, computer network servers, Computer network attached storage hardware, uninterruptable power supplies, computer network switches, shelves especially adapted for mounting computer network hardware, network server rack patch panels, network server rack blank plates and cable management trays; racks especially adapted to house electric cables, communications cables, surveillance apparatus in the nature of networks surveillance recorders (NVR/DVR) and/or electronic mail servers in the nature of rack mount server or rack mount virtual machine; fasteners specifically adapted for use with the aforementioned racks and mountings; fasteners specifically adapted for use with audio, visual, computer and/or telecommunications equipment, namely, audio amplifiers, audio mixers, audio/visual special effects units, graphic equalizers, electronic video signal switchers, digital media streaming devices, computer network servers, Computer network attached storage hardware, uninterruptable power supplies, computer network switches, shelves especially adapted for mounting computer network hardware, network server rack patch panels, network server rack blank plates and cable management trays; fasteners specifically adapted for use with electric cables, communications cables, surveillance apparatus in the nature of networks surveillance recorders (NVR/DVR) and/or electronic mail servers in the nature of rack mount server or rack mount virtual machine; parts, fittings and accessories for the aforesaid goods