4mm-Panel-Socket-with-Solder-Connection-Tru Connect-17-2672-p-Black-4mm-test-socket-designed-to-be-panel-mounted-It-requires-a-cut-out-of-8-2mm-&-a-solder-termination-It-is-especially-popular-in-test-equipment-used-by-education-&-training-schools-p-Tru Connect-4mm-Test-Socket-Black