Amazon.co.jp: Anwenk Standard 1/4"-20 Male to 1/4"-20 Male Thread Tripod Screw Adapter Standard Tripod Mount Thread Camera Screw Adapter Converter Precision Manufacturing (Pack of 5) : Electronics
Impact 1/4"-20 Female to 3/8"-16 Male Adapter with 1 1/8" CA-113
Midwest Photo Tether Tools Rock Solid 1/4"-20 Mighty Mount Adhesive Tripod Adapter w/ Hot Shoe
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Manfrotto 015 Female 3/8" to Male 1/4"-20 Adapter 015 B&H Photo
15mm Rod Holder to 1/4"-20 Adapter (Front Mount...
SmallHD 1/4-20 to 3/8-16 ARRI Accessory Mount Adapter — Wooden Camera
CAMVATE 1/4"-20 female to 3/8"-16 male Screw Adapter for tripod and camera
1/4-20 Adapter – MagnetMod
Hot Shoe to 1/4-20 Thread Male Post Adapter Mount for Cameras, Rails, Ball Heads and Flash Connections - iShot Mounts