AMPLIMITE D-Sub Connector, HD-20 318 PCB Mount Series, with Threaded Inserts AMPLIMITE HD-20 318 mount d-sub plug and receptacle connectors with zinc threaded inserts. These PCB mount d-sub connectors have an 8.08 footprint with right angle posts, tin plated steel front shells, 94V-0 thermoplastic housings and tin plated brass eyelets. The AMPLIMITE HD-20 318 mount d-sub receptacle connectors are preloaded with size 20 DF posted socket contacts made from phosphor bronze and the plug connectors are preloaded with size 20 DF posted brass pin contacts. Both socket and pin contacts have tin on the termination end with the entire contact nickel underplated along with two options of gold duplex plating on the mating end (please see manufacturers datasheet). These AMPLIMITE HD-20 318 board mount d-sub connectors are also available with or without tin plated copper alloy boardlocks (please refer to manufacturers datasheet for details).