I placed my pegboard behind a door in vertical direction so every hook I tried faild to stay on the board :( today I decided to design my own one and that's the result :)

Place 1 nut near the head of the 40xM4 screw, leave 2/3 mm, then place in the hole to match the exaghon hole with the nut, then tight the screw with another nut in the front part. Do the same for the second hole et-voila'