Missing screws from folding section of headphone / headband

Missing screws from folding section of headphone / headband
I'm missing a couple screws on my new Beats Studio 2.0. They are accessible / viewable when you fold the headphones inward and look at the exposed inside edge of the upper headphone "over the head" strap. Can you tell me what size / model these small screws are and whether or not I can purchase them from you.

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