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Need basic info on finding parts for dash resto

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I need some basic help! I have a bare dash for my 67 and I just got an SS dash strip and Glove box bezel. What type of fasteners are used to keep these pieces on and where can I find them. I know got the ignition pieces in but what about the "posts on the back side. Are there special wahsers and fasteners?

Any help would be appreciated.