Screws

Screws are the largest group in this tree, and the choice comes down to three things: the material they enter, whether the point needs a pilot hole, and whether the coating survives the environment. This page covers chipboard, drywall, self-drilling and roofing screws, how to read the diameter-length code, and how to pick a coating. The catalogue holds over 180 sizes from Akdeniz and Meridyen.