The Difference And Detailed Introduction Between Drill Tail Screws And Self Tapping Screws

1, What is the difference between self tapping screws and drill tail screws?
Although self tapping screws and drill tail screws are threaded fasteners, they differ in appearance, purpose, and usage.
Firstly, in terms of appearance, the lower end of the drill tail screw comes with a drill tail, similar to a small drill bit, professionally called a milling tail, while the thread of the self tapping screw has no drill tail at the lower end, only a smooth thread.
Secondly, there are differences in usage, and self tapping screws are usually used on materials with lower hardness such as non-metallic or iron plates. Because self tapping screws can drill, squeeze, and tap corresponding threads on the fixed material through their own threads, making them tightly fit each other. Drilled tail screws are mainly used on lightweight steel structures, which can penetrate thin steel plates and have a wider range of applications in various building and industrial structures.
Finally, there are also differences in usage. The tip of the self-tapping screw is sharp, and there is no drilled tail at the end. Therefore, before fixing, it is necessary to use an electric drill or pistol drill to make prefabricated holes on the object, and then screw in the self tapping screws. The drill tail screw can be used anytime and anywhere, because its tail comes with a drill tail, which can be directly screwed in on hard materials such as steel plates and wood without the need for pre drilled holes. The drill tail can be drilled synchronously during the screwing process.
Overall, there are some significant differences between drill tail screws and self tapping screws in many aspects, and businesses or consumers need to choose based on specific scenarios and actual needs.

2, Detailed introduction of drilling tail screws and self tapping screws
1. Drill tail screws

Drill tail screw is a type of wooden screw named after its front end with a drill bit, also known as self drilling screw or dovetail screw. According to their different drill tails, drill tail screws can be divided into various types such as round head millet/cross/plum blossom, countersunk head (flat head)/millet/cross/plum blossom, hexagonal washer, round head washer (large flat head), trumpet head, etc. Drilled tail screws are mainly used on lightweight steel structures or wood, allowing users to quickly and accurately fix wooden boards or steel structures together.

2. Self tapping screws

Self tapping screw is a type of ribbed screw, usually used to match steel plates, iron plates, or other materials with lower hardness depending on the material. It should be noted that self tapping screws do not require to be used in conjunction with nuts. They can easily complete the process of drilling and threading through their own powerful force.
summary
In practical use, selecting the correct type of drill tail screws or self tapping screws is particularly important for the stability and efficiency of fixation operations. Enterprises or consumers can choose different types of screws based on actual needs and scenarios to achieve the best fixation effect.