I'm looking to make something that kind of shows off 3D printing

I was hoping for something more secure, it's a factory environment. I want to prove a threaded boss that doesn't flop

maybe 5 pounds. I was thinking something similar to a drywall anchor or toggle bolt with threaded inserts adjacent to the expansion bolt I could use for my mounting

I was hoping I could have a center part I could thread a bolt into and expand the back like a drywall anchor and have one brass insert on each side of the center.

pic

I won't be able to access from the back

it is the screen material I want to mount into