Camera and Tripod 3/8 to 1/4 Adapter Screw : ID 2392 : $1.50 : Adafruit Industries, Unique & fun DIY electronics and kits
1/4" to 3/8" Converter Screw Adapter - Max-Gain Systems, Inc.
Tripod Mount racer, Basler beat - Camera Mount Adapter
Amazon.com : Neewer Camera Screw Kit, 16 Pieces Tripod Screw Adapter Converter Spigot Screw Mount Pack (1/4" to 1/4", 1/4" to 3/8", Female to Male, Male to Male, etc) for Camera/Tripod/Flash/Stand/Mic/Rig/Cage :
Camera Hot Shoe Mount to 1/4"-20 Tripod Screw Adapter Flash Shoe Mount – SIOTI
Tripod Mount ace - Camera Mount Adapter
CAMVATE 1/4"-20 Female to 3/8"-16 Male Screw Adapter for Tripod and Camera C1553
Amazon.com : Tripod Adapter Mounts with Camera 1/4-20 Screw Adapter Compatible for Gopro Hero Action Cameras by WOLEYI : Electronics
(2 Pack) 3/8" Female to 1/4" Male Thread Screw Mount Adapter Tripod Plate Screw | eBay
NICEYRIG 1/4 Inch Camera Quick Release Screw Tripod Screw Adapter Connecter DSLR Camera Rig Accessories,Screws
Amazon.com : Standard 1/4 Male to 1/4 Male Threaded Camera Screw Adapter Convertor,Camera Tripod Screw Convert Adapter Converter Mount for Camera Cage Rig/Tripod/Monopod/Ball Head/Light Stand/Shoulder Rig : Electronics
Camera Bracket Quick Release Plate Special Screw/1/4 Turn 1/4 Inch Male Head Thread Tripod Screw Adapter Double-Sided Standard Mounting Screw Adapter - Walmart.com
Standard 1/4"-20 Male To 1/4"-20 Male Threaded Tripod Screw Adapter Tripod Mounting Thread Camera Screw Adapter Converter - Photo Studio Kits - AliExpress
Tripod Screw Adapter, Tripod Screw Adapter 1/4 To 3/8 Screw Mount Convertor For Tripod Adapter Replacement For Male Screw Adapter - Walmart.com
Standard 1/4"-20 Male to 3/8"-16 Male Threaded Screw Adapter Tripod Screw Converter
1/4" to 3/8" Thread Adapter - RigWheels
AdirPro AdirPro 5/8 in x 11 in to 1/4 in x 20 in Tripod Adapter at Lowes.com