This one is intended to be used as a screw outer element. I am not especially proud of it, as matching other elements is not scalable so must be done with discrete tris/quads.
Some usage can be seen in library:
https://library.ldraw.org/official/28641
https://library.ldraw.org/official/28642
Some usage can be seen in library:
https://library.ldraw.org/official/28641
https://library.ldraw.org/official/28642