Tough-Ball™ with 1/4″-20 x .50″ Threaded Stud
The RAP-B-379U-252050 consists of a 1″ diameter rubber ball, connected to a 1/4″-20 X .50″ male threaded post. The male thread matches most standard camera and camcorder female threads found on the bottom of the camera.
U.S. Standard Thread Diameter and Pitch Option:
1/4″-20 X .50″
High Strength Composite & Steel
B Size 1″ Rubber Ball
The “U” in the part number reflects product packaged in poly bag.