Precision made 1/4"-20 to 1/4"-20 (male to male) metal tripod screws,international standard.
This is an universal adapter spigot stud for the Photography studio use.
International Standard universal camera 1/4 screw fits for any dslr slr camera tripod monopod light stand etc,. that is with 1/4" hole.
Made of metal, solid and durable.
Dimension: length:20mm,diameter:16mm