If you've ever mistakenly grabbed the Phillips head screwdriver when you needed a flat head, you've probably asked yourself why there are different types of screws. Let's start at the beginning. The ...

They hold together everything from the most delicate watch to the largest bridge. The world is literally kept from coming apart by screws and bolts, and yet we don’t often give a thought to these ...

Screws are designed with their intended materials in mind. Although it’s possible to use a drywall screw with a piece of wood, that doesn’t always mean it’s the best decision. There are multiple ...

Tapping screws form mating threads in materials they are driven into. There are two basic types: thread forming and thread cutting. Tapping screws form mating threads in materials they are driven into ...

Shoulder screws are a type of machine screw with integral threads that are only present on half or less of the screw shank. A shoulder screw has a partially smooth shaft that will allow the bolted ...

Self-tapping screws are the most common type of mechanical fasteners for assembling all sorts of products. They cut or form a thread as they are inserted, which eliminates the need for molding an ...