Trilobular Screws or Thread Forming Screws

Trilobular screws, also known as thread-rolling screws, are a type of fastener that features a unique thread design with three rounded lobes that are spaced evenly around the screw's shank. These lobes help to create a thread-forming action as the screw is driven into the material, which allows the screw to form threads as it goes, rather than cutting threads into the material.

There are different types of trilobular screws, and they are typically categorized based on their specific application or thread design. Here are some of the common types of trilobular screws:

1. Thread-forming trilobular screws: These screws have a unique thread design that allows them to form threads as they are driven into the material, rather than cutting threads into the material. They are often used in applications where a strong and secure connection is required.

2. Thread-cutting trilobular screws: These screws have a sharper thread design that cuts threads into the material as they are driven in. They are often used in applications where a more precise thread is required, such as in electronics.

3. Hi-lo trilobular screws: These screws have alternating high and low threads that help to reduce torque and provide a more secure joint. They are often used in applications where a strong and secure connection is required, such as in automotive and aerospace industries.

4. Plastite trilobular screws: These screws are designed specifically for use in plastic materials. They have a thread design that helps to reduce stress on the material and prevent cracking or splitting.

5. Taptite trilobular screws: These screws are designed to tap their own threads into the material, which helps to reduce the risk of cross-threading and improve the strength of the joint. They are often used in automotive and electronics applications.

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