What are these things? Small plugs from heater box?

[dakota]

I feel like "exhibit a" for how not to do things on a car project.  I took the heater box from my 70 Challenger (with a/c) apart last September, and am just now finally putting it back together.  I have these small cone-shaped plugs (7 of them) sitting in the bottom of a plastic cup that had been holding screws and clips from the heater box.  I haven't a clue where these go.  If you recognize them, please tell me where they go. 

For those of you just starting a project, I would strongly suggest you keep the time between disassembly and reassembly as short as possible and being an absolute fanatic about "bagging and tagging" parts. 

[anlauto]

They're not "plugs", they're caps. They cover any exposed screw threads that face the interior compartment or otherwise.

[1 Wild R/T]

They're not "plugs", they're caps. They cover any exposed screw threads that face the interior compartment or otherwise.

Yup... Which is why they were in the cup with screws...

[dakota]

Mystery solved.   Thanks folks.

[dodj]

They're not "plugs", they're caps. They cover any exposed screw threads that face the interior compartment or otherwise.

Alan, do you know if they were still used in '73? I don't remember seeing any on my car.

[anlauto]

Only found on A/C cars and I'm not certain having not worked on too many A/C cars. My guess, probably not. By 1973 they were looking for anyway to save money, so they probably stopped using them. There used to be a similar cap on the tail light screws in the trunk as well...

[dodj]

Thanks Alan 

[1 Wild R/T]

They were gone mid 71..