Please use the Onhshape link if yo uwould like the pin header extrusion to be on the bottom, I prefer having a electrically isolated" bottom.
https://cad.onshape.com/documents/9db3c5f66080abe53e2ecb7c/w/0c3d43254f755af32821e066/e/e15fcc2b6134760a1e3907e0?renderMode=0&uiState=65e4fa15dad7a56b99eab46e
The author marked this model as their own original creation.