In the world of engineering, something that does not get enough credit for its services are the humble screws that keep the structure stand for generations to come. These little guys are often neglected even by the engineer in most cases due to the abundance of them in any household and hardware store. However, one thing that is certain is that the use of them seems to be getting more and more important for man-made structures. There are, of course, a number of different types of screws out there, which can be broadly categorised into two; countershrunk and non-countershrunk nails. However, within these categories come many other different types, which are quite familiar to one’s eye. Here are just some of the more common types right now:

Flat Head

This is considered to be one of the most important screws of all time, as it is used in almost all the structures, due to the strength and safety it provides. This screw is generally characterised as having a flat head with a pattern which enables a Phillips screwdriver to manipulate. This is quite a convenient screw in decking, so much so that it is also called decking screws. The flat head allows the screw to be tightly secured to the material, leaving the possibility of retightening it in the future, due to the fact that even the head of the screw becomes part of the floor.

Button Head

These types of screws are often used in building machines, as these screws are often characterised with a button with a pattern that allows Allen keys to be used for the manipulation of the screw. If you look at your bicycle right now, especially on the brake callipers, you could see the button head screw keeping the all-important calliper in place during your intense rides on the urban roads.

Round Head

The round head screw is similar to a button head, except for the fact that these screws often require a flat screw driver to tighten or loosen it. This type of screw is also used in building heavy duty machines, since it allows not only safety, but also allows one to remove it easily, so as to look in to the machine for maintenance purposes, making the screw all the more practical and functional for manufacturers to use in their production processes.

Flange Head

These screws maybe something out of the ordinary, but is used in almost any construction site, since it is characterised as a screw that can bear immense loads without snapping or losing tension. These are made in the form of a hexagonal pattern, and looks like a washer is attached to it as well. These screws can only be tightened or loosened with the help of a spanner or a wrench, since these screws are fitted with a high torque setting to make sure the screw keeps the material intact and holds the load.

Next time you use a screw for even a small project, take the time to admire them, as they do a great service to many people out there keeping their structures rigid and safe.