IBZICON Posted May 25 Share Posted May 25 C4-NWB57C-P in wall new construction back box were installed 11 years ago for C4-TW7C0-BL touch screens. When changing out to the current T4 8" screens, the included long screens (1 1/2") with the T4 hardware are too short (appears that back box was roughed in too deep during construction) to secure the T4 mid box to the back box. Does anyone know the screw type? Lowes hardware employee pointed out that the thread on the T4 screws alternate between course and fine, and he felt I needed M3 x 50 mm screws. Quote Link to comment Share on other sites More sharing options...
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