How to fix broken screw hole in ceiling box? (re: ceiling light fixture; how to replace the box?) - Home Improvement Stack Exchange
lighting - My circular old work electrical box is too small for the light fixture mounting bracket - Home Improvement Stack Exchange
Commercial Electric 4 in. White Mounting Plate and Mounting Screws for Commercial Electric LED Strip Lights Covers Standard Junction Box 54657101 - The Home Depot
Everbilt #6-32 x 1-1/2 in Zinc Plated Flat Head Slotted Electrical Box Screw (250-Piece) 804114 - The Home Depot