T Nut - M4 for PG20 T Slot Profile Modular Extrusions

What length screw for L-bracket with V-slot and T-nut? v slot nut drop in post assembly m3 t-nut for 20 x 20 aluminum extrusion versnellingsbak slot drop in post assembly m3 t-nut for 20 x 20 aluminum extrusion

vintage slot car track T-Slot Nuts Type 20 Series for 2020 Aluminum Extrusion - Sizes M3 These T-slot nuts are composed of grade 12 carbon steel with a Nickel platting