Follow up of:
How to remove duplicate verts after spin tool?
How can I add bolts onto an existing mesh? If I create a separate object (as a single bolt) and duplicate it so that it looks like the inner part of the rim (ITALIERI) below:
how can I merge them with the existing mesh so that there are no ngons? Additionally, the new vertexes will also inherit the subsurf, right? meaning that each needs an extra edge loop or crease.