Yellow Adapter, 3/8" Whitworth to Leica Spigot for 5KB Convergence Bolt

Yellow plastic adapter to work with the “Convergence Measurement Bolt”. Designed to have a breaking point just below the spigot and just above the thread of the Convergence Measurement Bolt. This is to provide and maintain the stability and security of the Convergence Measurement Bolt.

Adapter can be easily replaced at time of measurement if required. Can be easily secured/removed with a size 22/24 socket if the adapter is recessed below the surface.