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

Pre Insertion T Nut for 8080, 4545, 4590 T Slot Aluminium Extrusions Profiles M4,M5, M6, M8, M10 sizes Buy in India Pre-Assembly Standard Nuts For

1pc T-Slider For T-Slot M6 M8 T Slot Nut T-track Slider T Block Square Nuts Aluminum Alloy T Slot Nut For Woodworking Jigs Screw Slot Fastener Tools

pharaohs fortune slot Drop in T Nut for 4040, 4080, 40120 T Slot Aluminium Extrusions Profiles M4,M5, M6 sizes

det fortryllede slot Standard T-Nuts for our 20 Series extrusions, in M3, M4, M5 and M6 thread sizes SKU: NA Category: 20 Series 6mm Slot