Both Rectangle Bases are built with tough nylon and use the universal AMPS hole spacing standard.
Please note: Screws are not provided for mounting the base to your required surface.
The holes will accept 10G or M5 countersunk fasters. Screw holes are 5mm.
Both bases can be fixed to flat surfaces vertically, diagonally or horizontally.
If using the 4 Hole Base, we recommend using all 4 hole screws for the strongest connection.