Different Types Of Machine Screws

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

Different types of machine screws.

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. We dug in and decided to write an epic guide on screw options. There are many different types of screws.

Set screws machine screws with no head for screwing all the way into threaded holes. Use this guide to learn what is a screw used for and when certain screw types are more appropriate to use. 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. Mating screws mating screws have a shoulder that matches the diameter of the sex bolts they are used with.

Machine screws come with different types of heads. Rather than cutting threads into materials thread forming screws create threads by compacting and creating pressure against the walls of the materials. The most common types of machine screw head shapes are pan head flat head round head oval head truss head and hex head. It s possible to have machine screws that have different thread counts but these are rare and are usually custom made.

Screws are amazingly versatile and powerful fasteners. Different types of screws have been developed to maximize efficacy for particular applications. The coarse thread machine screws usually have 24 threads per inch and the fine thread ones usually have 32 threads per inch. 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.

The heads of machine screws are similar to all other types of screws.