Had some old cabinets and needed a pin to hold the shelf up.
Recommend printing with supports to ensure layer lines go horizontally though the pin.
Onshape model here: https://cad.onshape.com/documents/a514b8dc83a825e9f9cbde6a/w/712fb847aec8a9b33f454ab8/e/b86882f32bdf53f67901d972?renderM
The author marked this model as their own original creation.