BMA MALE PANEL MOUNT PLUG

Manufactured by Omni Spectra (now part of TE / AMP group) as their part number 4551-1201-02,  these are a best quality passivated steel with gold plate and teflon 4 hole chassis mount BMA male.

The connection pin extends from the back of the connector by approximately 12mm, with the teflon insulation covering some 9mm of that.

Standard 4 hole footprint for BMA, 13mm square with mounting holes at 10mm centers.