Four (4) Inch Round Electrical Junction Box

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This is a standard 4-inch outdoor electrical junction box model, suitable for applications like motion-sensing lights, overhead lighting fixtures, and other common uses of round electrical junction boxes. Two versions are available: one with 1/2-inch PVC conduit threads and another with 3/4-inch PVC threads. Users can easily customize the design using the included .scad file, which utilizes the OpenSCAD Threads library found at http://dkprojects.net/openscad... . Both models feature a standard screw hole layout compatible with #10 screws and are designed for use with these fixtures. The outside mounting screw holes are slightly larger to accommodate common exterior screws. For secure water-tight connections, users should apply dielectric grease around the perimeter and in threaded holes when screwing components into place. Using washers during installation can also help prevent leaks. To meet US National Electrical Code requirements for 110-120V applications, print the box using a flame-retardant filament or resin that is UV-stable. Alternatively, users may apply a UV-blocking coating like Krylon UV Protect Gloss. Minor updates were made to the .scad file on May 25, 2018, incorporating 'inside=true' for threads and re-rendering the models with correct NPT specifications. **Important Warning:** Users take full responsibility for any injuries or damages resulting from using this model.