This is the GT Lug.  M5 x .8 Threads.  With 4x the Torque of a standard action camera screw you can be confident this screw is going to lock up tight.  This Lug is built to last from Stainless Steel and Brass.  
 
If you are a fan of the tool-less nature of GoPro connectors the GT Lug is for you.  Spin tight with one finger; much tighter and much easier than you could secure with a screw.  
 
The stud is stainless steel and the knob is brass.  The stud is installed permanently.  The Stainless Steel is shiny, the Brass is brushed and finished with lacquer.  This gorgeous part arrives shiny, clean, and individually wrapped.
 
*Please note the GT Lug does not fit under an action camera case.  We recommend the Superscrew for under the camera case.