What size T-slot nutsbolts do I want to get for the 20x20 Aluminum

What size T-slot nutsbolts do I want to get for the 20x20 Aluminum 4040 t slot aluminium extrusion Aluminium profile industrial aluminium extrusion t slot aluminium profile for industry; #aluminum #aluminumextrusion #aluminiumprofile 4040 t slot 4040L Aluminium ExtrusionProfile Item Style profile - Black Anodised T-Slot type Profile with a 8mm Wide Slot The profile Core is dia so can be

4040 t slot Iverntech 4pcs Corner Bracket for Standard 8mm Slot 4040 Series Aluminum Extrusion Profile Connector Joint Brace Fastener with 16 pcs M8 T

4040 v slot 4040 Aluminum extrusion (make sure the extrusion inside matches up with the T-Slot nut My 3018 is the all-aluminum model with aluminum gantry plates and 2040 extrusion running along X So, for this machine, V-Slot 4040 is an