This 1/4" - 3/8" GlareOne universal stud will allow you to mount photographic accessories including studio lamps on various mounts or arms and is used to connect various accessories ending in different sockets.

1/4" thread will fit most cameras and camcorders.
The 3/8" thread is most commonly used in photographic heads.

Dimensions:
Overall length: 39 mm
Length of each thread: 7 mm
Width: 16 mm