Although it may surprise some people, the concept of the common screw has been in production since about 200 B.C. or so. In 2017, the revenue generated from the manufacturing of nuts, bolts, and screws grew to about $30 billion. Clearly, the common screw is a vital building component for many types of manufacturing jobs, from smart phones to airplanes. But what is “common” when it comes to screw design? In fact, there are many types of small screw heads used in manufacturing, and nearly as many types of threads.
Does Your Project Require Custom Manufactured Micro Screws?
To the average layman, most tiny screws look alike other than their difference in size. This misconception is common. The threads and points of a screw are manufactured differently because the stability and strength they add depends on how they will be used.
Custom Manufactured Micro Screws Come in Many Thread Types.
1. Plastite. This type of threading is used on custom manufactured micro screws that will be used in hard plastic. The threads are placed more widely than on PT screws, which allows the screw to be drilled into the harder material with greater ease.
2. Hi-Lo. Custom manufactured micro screws that use the hi-lo method for threading has threads set at a 30 degree angle at a smaller diameter, which is favored for jobs that need a screw that can resist material displacement.
3. PT: Screws with this type of threading has especially sharp thread edges, which work great when being drilled into plastic because it greatly eliminates flaking in soft plastics. Another benefit is that the screws do not settle over time and loosen, making them a good choice.
5. Delta-PT As with the PT screw, this version simply has threads placed at an angle that further strengthens its ability to drill into soft plastics with minimal flaking and maximum hold.
6. P-Type. This last type of screw is another option that is great for minimizing flaking, as it has a wider spacing between its threads.
Choosing the right screw thread for a project is essential. The average consumer might be able to get away with using any screw type they have on hand, but this is not so with manufacturers. One could go so far to say that using the correct screws in manufacturing is a matter of integrity, as the wrong choice could compromise the final product.