The Different Types of Screws

Last Updated on July 1, 2020 by Marsh Fasteners

When it comes to fasteners, screws are extremely common. They come in a variety of different shapes and sizes, each of which has a unique application. It is important not to get confused between screws and bolts. While they serve a very similar purpose, small fasteners are generally called screws, whereas the larger types are referred to as bolts. Below, we look at some of the different types of screws as well as when you would be most likely to use them.

Sheet Metal Screws

These are usually the sharpest screws and are made to cut into sheet metal, wood or plastic.

Lag Screws

These screws are crafted with threading that extends all the way up the shaft

Deck Screws

Deck screws are usually used in wood and come with a unique notched point ideal for removing wood chips.

Self-Drilling Screws

These screws have been designed to pierce through 20 to 14-gauge metals with the help of a special TEK point.

Drive Styles and Screw Heads

Screws are also usually categorized according to their drive style, the most common ones being slotted, star, and square and Phillips (which is the most common variety that looks like a cross). Each screw will also have a different head. These heads may include bugle heads, fillister heads, and button flange heads, to name a few.

Screws may also be classified according to their threading. Coarse and fine threading varieties are available with coarse threading screws being a great choice for extra retention and gripping power.

Looking for the right screws for your project? Look no further than Marsh Fasteners. Contact us today to learn more about our product range.


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