Tripod Mount Thread Adapter 1/4 to 3/8 UNC: One Piece (1 Single) TOM SHOT 360
SCREW ADAPTER
Camera and Tripod 3/8 to 1/4 Adapter Screw : ID 2392 : $1.50 : Adafruit Industries, Unique & fun DIY electronics and kits
Amazon.co.jp: Screw Converter Adapter, 1/4 to 3/8 Tripod Screw Adapter Light Stand Accessories for DSLR Camera Rig Tripod Monopod Ball Head Camera : Electronics
Tripod Screw Mount Adapter for Light Stand – Foto&Tech
Tripod Mount Adapter
Tripod adapter 3/8'' to 1/4'' - 120 | Manfrotto Global
Tripod Mount Adapter for GoPro HERO 11 10 9 8 7 6 5 4 3 2 1 MAX Fusion360 Session | CamGo
Amazon.co.jp: Tripod Screw Mount Converter, Camera Accessories Rust Proof Tripod Screw Adapter for Tripod Monopod Ball Head Camera for DSLR Camera Rig : Home & Kitchen