AECO Connector AT4-1812G Series 5 Pole Gold Plated Banana Plug

4.4mm metal body with five parts: Tip Pin, center ring, and end sleeve. Each metal part is separated by Nylon insulation. There’s a hole between the contact pin and body structure to put the fillers into the gap of the body from the hole. Use the POM latch through to fix the body. The body and the shell locked by screwing. POM sleeve is fixed with end of shell by using screw.