Looking for slim M6 or M8 t-nuts that would fit this extrusions

FlexLink M6 T-Slot Nut Connecting Component, Strut Profile 44 mm m6 t slot nut nuts and bolts, I probably should have tried M6 but I couldn't find any at the hardware store and didn't want to buy 200 of something that I m69 slot เครดิตฟรี M6 T Slot Rectangle Nut in Grade 10 Steel Zinc & Clear Cr3 with dimensional measurements, in a range of finishes

m6 t slot nut Different types of T-Slot Nuts with threads and groove profiles for customized processing generate a counter-bearing for the screw in the groove