Different Types Of Machine Screws

From lag screws to deck screws this guide demystifies all types of screws.

Different types of machine screws. We dug in and decided to write an epic guide on screw options. When it comes to screws there are a lot of different types of screws as well as an intricate set of parts to a screw. Rather than cutting threads into materials thread forming screws create threads by compacting and creating pressure against the walls of the materials. Set screws machine screws with no head for screwing all the way into threaded holes.

The most common types of machine screw head shapes are pan head flat head round head oval head truss head and hex head. The various types. Chart showing 60 types of screws screw heads bolts nuts and washers chart. The basic concept is a threaded cylinder that is used for holding all sorts of things together including wood plastic and metal.

Use this guide to learn what is a screw used for and when certain screw types are more appropriate to use. Machine screws come in coarse thread which means they have 24 threads per inch and in fine thread which means they have 32 threads per inch. It s possible to have machine screws that have different thread counts but these are rare and are usually custom made. The coarse thread machine screws usually have 24 threads per inch and the fine thread ones usually have 32 threads per inch.

Mating screws mating screws have a shoulder that matches the diameter of the sex bolts they are used with. Type f machine screw threads a blunt point and multiple cutting edges these screws are used in heavy gauge sheet metal aluminum zinc and lead die castings cast iron brass and plastics. Screws are amazingly versatile and powerful fasteners. There are many different types of screws.

Machine screws come with different types of heads.