Buying Half-X Hinge Springs

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Looking for 2 Half-X hinge components ( The parts that attach the ear stem to the frame, should consist of 2 pieces.)

Feel free to help me out with the terms of these components not familiar for Half X ( One is a screw, the other helps serve as the hinge mechanism.)
Thanks

 

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I have 2 full sets of half x that i am looking to sell. the screws a little stripped but if you're interested let me know.