When it comes to fasteners, the terms "hex cap screw" and "hex screw" are often used interchangeably. However, there is a subtle difference between the two. Understanding this difference can help you choose the right fastener for your specific needs.
A hex cap screw, also known as a hex head cap screw or a fully threaded hex screw, is a type of threaded fastener that has a hexagonal head and a threaded shaft. It is designed to be tightened or loosened using a wrench or socket tool. The threaded shaft extends along the entire length of the screw, allowing it to be fully inserted into a tapped hole or secured with a nut.
On the other hand, a hex screw, also known as a hex bolt, has a similar hexagonal head but is partially threaded. Unlike a hex cap screw, a hex screw is typically used with a nut to create a secure fastening. The threaded portion of the hex screw is shorter compared to a hex cap screw, leaving an unthreaded shaft between the head and the threaded section.
So, when should you use a hex cap screw and when should you use a hex screw? The choice depends on your specific application requirements. If you need a fastener that can be fully inserted into a tapped hole or secured with a nut, a hex cap screw is the ideal choice. Its fully threaded shaft provides maximum thread engagement and ensures a secure fastening. Hex cap screws are commonly used in machinery, construction, and automotive applications.
On the other hand, if you need a fastener that requires the use of a nut for a secure fastening, a hex screw is the better option. The unthreaded shaft of a hex screw allows for proper engagement with a nut, providing added stability and strength. Hex screws are often used in structural applications, such as building construction and heavy machinery.
In conclusion, while hex cap screws and hex screws may seem similar, there is a crucial difference between the two. Understanding this difference is essential for selecting the appropriate fastener for your specific needs.
Post time: Nov-15-2023
