Shafts are available in 3" and 6" lengths. Screw the shafts directly to your base plate. All shafts come with male/female 1/4-20 threads.
82-6060 - AC Power Transformer; 16.5VAC, 40 VA
16.5VAC, 40VA power transformers for security applications. Features a plug-in ground and auto-resetting overload protection. Mfr. #ELK-TRG1640.
82-8485 - Video Coax Surge Protector
Protects valuable CCTV equipment from high voltage surges such as lightning strikes and voltage spikes.
I have dealt with MCM Electronics a number of times and have been more than satisfied.