Bushing nickel-plated SLB4-G/NX blue

. Insulated, rigid, Ø 4 mm, accepting spring-loaded Ø 4 mm plugs with rigid insulating sleeve. Machined brass. Insulation material UL94 V-0. The socket is screwed into pre-drilled panels of plastic, metal, etc. Threaded bolt M4 and soldering hole.