These rules for using the right screws for the right job, listed on the Popular Mechanics website, are simple and straight forward and a good guide to remember.
Self-Drilling - Holds thick sheet steel assemblies or sheet steel to tubing
Sheetmetal - Fastens light-gauge sheet steel assemblies or small plastic parts.
Traditional Wood – Joins wood parts in furniture and fastens hinges to wood.
Modern Wood – Fastens wood to wood and wood to composite materials.
Lag – Joins hardware to construction lumber or lumber to lumber.
Drywall-to-Wood – Attaches drywall to wood studs.
Drywall-to-Metal – Attaches drywall to metal studs.
Concrete – Fastens wood or metal to concrete, brick or mortar joints.
Read “How to Use It” and find more interesting and useful information at Popular Mechanics – HERE
