Does anyone know where to get a 5/16 x 7/8 coupling nut?
Are all the screws/bolts hex, philips, hex socket, slotted? (based on the build there seems to be a mixture of hex and philips, can anyone confirm this type or does it not matter?
The coupler you should just go have a look at your local hardware store there are short and long ones, we use the short (long will work but not in the new upcoming parts).