You might hit up a body shop for something like that. If you can pop it out, it'll make it that much easier to get the right part.

 

This might be it

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recently i changed the bulb in my 3rd brake light.. and noticed that someone before me broke the clip that holds the screw in and just jammed it into the brake light assembly so it looked like the screw was holding in the light.. it wasn’t 😡

i cant find a replacement clip...
View attachment 968833

please help with part number, name , something to help me find this clip..