I want to make a connection between to thin sheet materials that can be disassambled. Seems easy enough, right? Just use nut bolt and washers. The problem is that when the connection is made there is no hand access to other side to hold the nut. I cannot make a thread too. Is there any better solution that glue the bolt to other side ? Maybe someone has already invented a type of one-side-locking-bolt? The connection does not need be super strong. The this is a lid or cover of some sort, imagine a light car hood.
This sounds like a job for a t-nut. You drill a hole and then attach the t-nut. The ones for wood get hammered in, but there are also ones for metal which get screwed in.