Thread Cutting vs Thread Forming – What’s the Difference

There are several types of screws, and each has its own benefits and drawbacks.

Some screws, like thread cutting screws, have edges designed to cut their own thread and remove the material as it is inserted. Other screws, like thread-forming screws, displace the material instead of removing it as they are pushed into a material.

This blog post will discuss the differences between thread-forming screws and thread-cutting screws. We’ll also talk about when you should use each type of screw.

What Are Thread Cutting Screws?

Thread cutting screws are screws with a built-in tap, which allows them to create their own thread as they are driven into a pre-drilled hole. This type of screw is commonly used in applications where a threaded fastener is needed, but it is not possible or practical to tap the threads beforehand. Thread forming screws are available in various sizes and materials to suit a wide range of applications.

Thread Cutting Screws manufactured by YIJIN hardware

These screws are typically made from carbon steel or stainless steel, although other materials such as brass or bronze may also be used. The type of metal used will depend on the application and the desired characteristics of the screw. For example, stainless steel thread-forming screws are often used in applications where rust resistance is important, such as in outdoor or marine environments.

When selecting screws, it is important to consider the thread size, length, and head style that is appropriate for the application. The thread size will determine the diameter of the screw and the size of the hole that needs to be drilled. The length of the screw will determine how deep it can be driven into the material. The head style will determine how the screw can be driven and removed. Common head styles include Phillips, slotted, and hex.

Thread Cutting Screws manufactured by YIJIN hardware

These screws are a versatile type of fastener that can be used in various applications. They are particularly well-suited for use in situations where it is not possible or practical to tap threads beforehand. When selecting form tapping screws, it is important to consider the size, length, and head style that is appropriate for the application.

What are Thread Forming Screws?

Thread forming screws are self-tapping screws that are used to form threads in thin metal sheets. These screws are also known as thread rolling screws or tap forming screws. Thread forming screws have a tapered shank with multiple cutting edges.

The tapered shank allows the screw to cut threads into the metal sheet as it is screwed into place. The cutting edges on the shank of the screw also help to grip the metal sheet, preventing the screw from coming loose over time.

Thread forming screws are available in a variety of sizes and materials. The material used for the screw will depend on the application. For example, stainless steel thread-forming screws are often used in food processing applications because they are resistant to corrosion.

Thread Forming Screws manufactured by YIJIN hardware

There are many benefits to using thread-forming screws instead of traditional screws or bolts. One benefit is that thread-forming screws do not require a pilot hole to be drilled before installation. This saves time and money by eliminating the need for a separate drilling operation. Another benefit is that thread-forming screws create a stronger connection than traditional screws. The threads cut into the metal sheet by the screw help grip and hold the screw in place. This prevents the screw from coming loose over time, which can be a problem with traditional screws.

Thread forming screws are typically used in applications where a strong, permanent connection is required. They are commonly used to fabricate electronics, computers, and appliances. Thread forming screws are also used in automotive applications, such as attaching body panels to a car frame.

Thread Forming Screws manufactured by YIJIN hardware

If you are looking for a strong, permanent connection, thread-forming screws are a great option. They are easy to install and create a stronger connection than traditional screws.

Thread Cutting vs. Thread Forming – Summarising the Difference

Thread Cutting Screws: Used to create a thread in a hole that is already drilled. The screw creates the threads as it is turned, so there is no need for a tap. These screws are used when creating new threads in softer materials like aluminum or plastic.

Thread Forming Screws: Used to form a thread in existing material. The screw forms the threads as it is turned, so there is no need for a pre-drilled hole. These screws are used when creating new threads in harder materials like steel or brass.

 

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