LimoStudio [2-Pack] Wall and Ceiling Mount with 5/8” Stud and 1/4" Thread with Screws for Photo Studio and Video Shooting, AGG2801 27.47$
Manfrotto 196B-2 143BKT 2-Section Single Articulated Arm with Camera Bracket (Black) & 035RL Super Clamp with 2908 Standard Stud - Replaces 2900 - Black 154.52$
Neewer 2 Packs Rapid Adapter Convert with 1/4" Screw, Multi-Functional Light Stand Tip Adapter - Fits for Studio Monitor Stand, Camera Mount, Photo Studio Photography Light Stand 19.50$
Pantograph for Ceiling Rail System for Studio Extra Long Pantograph 2M Extensometer Constant Force Hinge 259.99$
Westcott Scrim Jim Cine Clamp with 5/8" Stud for Mounting to Grip Head - Heavy Duty for Commercial Photographers, Rental Houses, and Filmmakers 69.99$