FME connector is miniature RF coaxial connector with full thread connection and is nickel plating with 50 ohm impendence. This FME connector can be soldered with RF coax cable 1.48 and 0.81 mm to be RF antenna cable.
Please link FME connector plug straight bulkhead crimp for RG178, 1.13mm to get the drawing of C29CBWS178001 for 1.48mm, 0.81mm coaxial cable