Parts Of the Screw

Drive: This is the slot your screwdriver tip will fit into. It is also known as the screw head. There are many such options; Accordingly, you should have a large number of screwdriver tips in your toolbox. There are many different designs of drives, but the three most common are Schlitz, Philips, and Pozidriv.

Head: The head is the tip of the screw. It is usually wider than the shank and thread. Heads can be flat or domed. Some are small in diameter in relation to the shank and others are very wide.

Thread: Amazingly, the thread has many components and varies between screws. There is the thread angle, which indicates how steeply it angles down. There is also spacing between threads that makes a difference. This is the pitch. Some screws have threads that are small and close together. Other screws have larger threads that are further apart.

Thread length: The thread length is either full length or partial length. Accordingly, there are fully threaded and partially threaded screws.

Not threaded shank: This is the part of the shank which do not have threads. This part could be absent in some screws.

Threaded shank: This is the part of a screw having threads on it. It is the place from where the screw gets its grip on joining bodies. It has helical grooves in it.

Tip: At the very end of the screw is the tip that penetrates the material first when the screw is being driven in. There are many different types of tips. The one on the left is specially designed for decking and therefore has a very sharp point.