What length screw for L-bracket with V-slot and T-nut?

T-nut for 20x20 or 20x40 V-Slot aluminum extrusion compliant with original metal T-nut but adopted for M3 nut

OpenBuilds Tee Nuts fit V-Slot and most aluminum tee slot extrusion that has at least a 10mm wide tee nut slot Low Carbon Steel M5 or M3 Thread Size Note:

viva 138 slot The bottom of the slot should be round It doesn't matter how deep the string is in the slot because once you get beyond the 12 way mark, the

vegas free slot drop in post assembly m3 t-nut for 20 x 20 aluminum extrusion