DIYers unable to securely fasten materials to hollow metal doors without proper fastening solutions

DIY enthusiasts and homeowners struggle to find the correct fastening method when attaching plywood or other materials to hollow metal doors, as standard screws don't grip properly in hollow cavities. Current solutions require either specialized knowledge, trial-and-error experimentation, or purchasing multiple fastener types. This creates frustration, wasted materials, and failed projects that compromise door integrity or aesthetics.