Spraycan holder for heavy duty shelves

put some M4 heat set inserts into the folder and screw on the little plastic washer. then you can easily mount them on common heavy duty shelves often used in basements, garages or workshops.

I mounted them on some shelves from Obi Baumakrt where the holes are 40 mm apart, but the model can be easily modified to fit shelves with different hole spacings.