5Pcs 1/4' to 3/8' Convert Screw Adapter For
1/4' to 3/8' Convert Screw Adapter for Tripod. Thread Adapter with female 1/4' thread to male 3/8' thread. It works with our Double Head Stud w 1/4' to 3/8' thread, and make it work as a Double head stud w 3/8' to 3/8' thread.
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