Details
Best quality high frequency connectors, manufactured by Radiall as their part R123.555.020, these are a bright nickel plate and teflon single hole chassis mount QMA type female.
The QMA series of connectors offer the same characteristics and frequency capabilties as the popular SMA series, but with the advantage that they are a snap together quick fit type of connection as opposed to the screw threaded SMA type.
Length of the connector at the rear is 8mm.