AS9120B, ISO 9001:2015, and FAA AC 0056B ACCREDITED

Common Types of Socket Head Cap Screws and Their Applications

For instance, socket head cap screws are a subtype that feature a cylindrical head with a recessed hexagon drive, and they can be installed in a material with the use of a hexagon-shaped key. As compared to other various screw types, socket head cap screws are known for their ability to achieve a high degree of torque through tightness. In this blog, we will discuss socket head cap screws in more detail, allowing you to become familiar with their various types and how they benefit many applications.

One of the most common types of cap screws is the flathead cap screw, those of which feature a thin, level head on one side. The head may feature a recess that accommodates a matching tool, and the head is designed to remain flush with the surface of a workpiece upon being installed. With this key feature, flathead cap screws are regularly used in settings where there cannot be any protrusions on a surface as a result of performance, safety, or aesthetic requirements. One common example of their use is on the fuselage of aircraft. For an aircraft to be efficient, it must create minimal drag while flying through air. As any surface extending into the flow of air will produce drag, aircraft find many advantages to flush fastener surfaces.

Hex head cap screws are another type that may be even more familiar to individuals who work with fasteners, and they are regularly relied on for more heavy-duty applications. Oftentimes, assemblies that exert a large amount of force on fasteners will benefit from hex head cap screws, as they can handle such stressors without failing. To ensure that a hex head cap screw remains integral within a heavy-duty application, it is important to determine how much force will be exerted on the fastener so that a suitable option can be chosen. Generally, the size and material of the screw will determine its ability to handle heavier loads.

As the final major type of socket head cap screw, round socket head screws are types that may feature a high or low design based on the size of the head. If a low-type round socket head screw is chosen, the head will be almost entirely flat. Meanwhile, high-type options have projecting heads. In terms of their applicational use, round socket head screws are primarily used for the assembly of circuits and similar components.

While socket head cap screws are very robust and useful, they are subject to standard wear and tear that may detract from their overall performance and reliability over time. If you have an assembly where your socket head screws are beginning to show signs that point to impending failure, be sure to replace them as soon as possible with quality parts. Here on Aviation Domain 360, we can help you procure all types of cap screws that you require to carry out your operations.

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