Harwin PCB Test Socket for 2mm Pin. PCB mount dual entry test socket compatible with 2.03mm diameter test probes and other 2mm pins. This 2mm PCB test socket is right angle mounting, side stackable and has a low profile above board height of just 5.1mm. The socket contacts of this PCB test socket are made from gold plated phosphor bronze which provides improved durability and reliability for multiple mating cycles. The housing is made from black UL94V-0 nylon.