Insert for HSW with M3 square nut

HSW insert with M3 square nut and gluable plug for securing the nut permanently in place.

Use DIN 562 M3 nuts. Dimensions should be around 5.5 mm (side to side) x 1.5 mm (height).

Insert the nut into the base, apply superglue as far away as possible from the nut, and push the plug in.