1/4"- 20 Camera Tripod Bolt to 17mm Ball Adapter

1/4"-20 Camera Thread to 22mm Ball Adapter

ARKON SP142017MM Female Camera 1/4"-20 Threaded Pattern to 17mm Ball Adapter

1/4"-20 Camera Thread to 25mm Swivel Ball Adapter

Essential 17mm Ball Adapter for Camera Mounts & Tripods - Portable Convenience

ARKON Mounts SP142017MM Female Camera Threaded 1 Count (Pack of 1), Black

Versatile Camera Adapter: 1/4-20 Female to 17mm Ball for Tablets and Smartphones

Female Threaded Camera Mount Adapter to 17mm Ball for Smartphones & Tablets