1970-71 Duster taillight housing cover bolts/screws.

Does anyone have a photo of what the 1970-71 Duster taillight housing cover bolts or screws should look like? These would retain the plastic cover to the back of the taillight to keep the bulb sockets from getting hit.
Is there a source for these bolts or screws?
I need 12 of them, 6 per car.
Thanks in advance.
Dave
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