You have successfully added from to your part list.
The integrally molded locking ears are available with ELVP and ELVT plugs, and ELVH series headers. Plug ears hold a captive floating, slot-head locking screw that engages a threaded insert on the header ear. The mounting screw is tightened after plug and header are firmly mated, securing the connection. All ELV plugs and headers are intermateable and interchangeable with industry standard .150" plugs and headers.