ITEM NAME:Camera 1/4in-20 to 3/8in-16 Reducer Bushing Convert Screw Adapter for Tripo U8C4 Camera 1/4in-20 to 3/8in-16 Reducer Bushing Convert Screw Adapter for Tripo U8C4 1/4in-20 female to 3/8in-20 male convert screw adapter. This reducer screw allows you to convert any 3/8in-16 thread for the insertion of a 1/4in-20 screw. Compatible to Lens Plate Button Heads, Arca Swiss Type Button Heads. Made of metal, solid and durable. colour: Silver Package Contents: 10 pcs * reducer screws Only the above package content, other products are not included. Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm..This reducer screw allows you to convert any 3/8in-16 thread for the insertion of a 1/4in-20 screw. 10 pcs reducer screws. colour: Silver. Compatible to Lens Plate Button Heads, Arca Swiss Type Button Heads.