Super Shelf Pin

There were already a lot of shelf pins on Thingiverse, but I wanted something beefier.
It is for a 4.7 mm (0.185 in) peg hole that is 11 mm deep.

It includes an optional mounting point for a wood screw - and the steel variants will allow you to use a 15 mm M3 SHCS to take most of the load of the shelf.

I have no liability for however you may use this design, you should not expect any guarantee of structural adequacy regardless of application.