Fastener for Paper / Card Stock

Home with my son who has COVID and he needed some brass fasteners to make a model of the sun / moon / earth where they could revolve appropriately. Didn't have brass fasteners and couldn't leave the house, so I found luquad525's “Locking rivet, fastener," remixed it to have a shorter overall height, and printed. 

I used the same 0.1mm layer height, and of course you need to print two to connect them together. Works great, can be unfastened, and is reusable. Per advice in the original, I enabled sequential printing at Print settings - Output options - Complete individual objects.