We recommend using the M5 steel mounting screw to mount IG52 motors. We use these in our Custom Length IG52 DB Robot platform when we mount the motor to the chassis through two 1/8" thick plates.
The M4 Steel Mounting Screws (8mm Length) can be used to mount IG42 motors. We use them in our IG42 SB platform.
This is a monitor that can be used with the wireless cameras. It has Video and Audio input.
This is powerful wheelchair motor. They make great heavy-duty robot motors. 250W 120RPM motors with 17mm keyed shaft output. They are sold individually and have an electric brake mounted on the back.