Tripod Mount Thread Adapter 1/4 to 3/8 UNC: One Piece (1 Single) TOM SHOT 360
Amazon.com : 3/8" to 1/4" Tripod Ballhead Reducer Bushing Convert Screw Adapter,1/4" to 3/8" Tripod Ballhead Camera Convert Screw Adapter Mount for Tripod Monopod Ballhead Video Light Stand DSLR SLR : Electronics
CAMVATE Convert Screw Adapter 1/4" Female to 3/8" Male Tripod Screw Monopod Screw (2 Pieces),Male To Female
Screw adapter 3/8" to 1/4"
1set Male To Female Screw Adapter 1/4" 3/8" Mount Set Thread Screw Adapters Convert For Camera Tripod Light Stand - Tripod Monopods - AliExpress
SmallRig 1/4" to 3/8" Screw Adapter (5 pcs) 1610
WindTech 3/8-16 to 1/4″-20 Female to Female Thread Adapter | Wilcox Sound and Communications
CAMVATE 1/4"-20 female to 3/8"-16 male Screw Adapter for tripod and camera
5 In 1 Durable Male Female Screw Adapter 1/4" 3/8" Thread E/b Mount Set For Camera Tripod Flash Light Stand Converter Screws - Photo Studio Kits - AliExpress
4pcs Durable Male To Female Screw Adapter 1/4" 3/8" Mount Set Thread Screw Adapters Convert For Camera Tripod Light Stand - Photo Studio Kits - AliExpress
Camera and Tripod 3/8 to 1/4 Adapter Screw : ID 2392 : $1.50 : Adafruit Industries, Unique & fun DIY electronics and kits
iShot Pro 1/4 - 3/8 Hybrid Convert Reducer (2-pack) Screw Adapter for SLR Camera, Tripods, Ball Heads and MonoPod - iShot Mounts
3/8" 1/4" 1/4"-3/8" Female Male Screws Camera Tripod Thread Adapter Reducer | eBay