How to modelling Screw locking in SW?
1 Answer

That just looks like a revolved pattern of a cut-extrude.
I found this one in the library, but I don't think it is an exact match:
Nord-Lock / Ripp Lock Washer - Parametric
You can also download a model from McMaster Carr. It is a SW native format, and has a full feature tree to examine: https://www.mcmaster.com/#91074a138/=1dqcr4o
There are dozens of different sizes, so be sure to get the one you need/want.