From woodencamera website
The UVF Mount LCD Kit attaches larger LCD monitors to cameras while keeping the horizon level. Three points of adjustment: 15mm tube clamp for tilt and distance to the camera, NATO thumbscrew (identified by red component) for positioning on NATO rail, and tension thumbscrew to adjust tilt of LCD. Tool-less design allows quick installation and removal of LCD unit. Safety pin prevents accidental removal. UVF v2 Sled can also attach directly to any NATO-style rail.
15mm Tube Clamp portion attaches to two 1/4-20 screw holes spaced between 25mm and 36mm center to center. The pass through holes and slots on the L bracket accommodate monitors with 1/4-20 holes on top or bottom. A small spacer piece is included for the LCDs with video connection ports and controls on the bottom.
NATO Arm length approximately 4″
Features: 1/4-20 threaded and pass through holes – for attaching LCDs
Includes: (2) 1/4-20 x 3/8 socket cap screw (2) #6-32 socket flat head screws
Specifications: Weight: 338g (0.7 lbs) Dimensions: 158.8 x 145.4 x 49 mm (6.3 x 5.7 x 1.9 in)