Amazon.com : Camera Screw Adapter Thread 1/4" Male to 3/8" Female and 3/8" Male to 1/4" Female Adapter Set for Camera Monitor, Tripod, Mount : Electronics
Amazon.com: SMALLRIG 1/4" to 1/4" Male Threaded Screw Adapter Double Head Stud for Camera Cage Monitor LED Microphone, Pack of 2-828 : Electronics
5/8-Inch Male to 1/4-Inch Female Mic Screw Adapter For Mic Micphone Stand
Amazon.com : CAMVATE 1/4" Male to 1/4" Male Double-Ended Screw Adapter(3 Pieces) - 1229 : Electronics
Amazon.com: PATIKIL M10/M12 to M6/M8/M10 Reducing Screw, 6 Pack 15mm Long External Thread Adapter Reducer Convert Joint Hardware Double Male Thread Bolts : Industrial & Scientific
Suppressor Thread Adapters | Stealth Project
Uxcell M10 to M6/M8 20mm Long Double Male Threaded Reducer Bolt Screw Fitting Adapter 6 Pack - Walmart.com
CAMVATE Convert Screw Adapter 1/4" Female to 3/8" Male Tripod Screw Monopod Screw (2 Pieces),Male To Female