i tried those too and they didn't connect very good, also tried this for my estop kill switch with leds and key but threw them away since they were unreliable, perhaps if there are more solid metal instead of cheap plastic ones this would be better.
Michel
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Michel Rietveld @ Utrecht The Netherlands
FB3, BEYOND Ultimate, 3xFB4, apc 40
1x5W RGB 637nm 1.3W, Edison Blue 2.5W 445nm and CNI 2.5W 532nm Greenie with Pico driver with DT40Kpro scanner set
2x3W RGB DT30 scanner set