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Captive Screws
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Captive Screws

Captive Screws are a specialist fastener that is retained within a target assembly or housing, typically with an unthreaded portion below the head, called a reduced shank. The screw is captive meaning it can not be totally removed from the hole or fall out when items are disassembled.

Available in a range of variants, with differing heads including cap head, pan head, button head and countersunk, the uses of captive screws span a wide range of industries and applications.

Reduced Shank Captive Screws Made to Order

Captive Screws are used across a number of different types of industrial machinery, especially where a loose or lost screw could cause catastrophic damage to an assembly or production line.

They are also used across certain military applications where the removal and reinstallation of panels and other components may need to be done efficiently.

Whilst we stock a wide range of sizes and materials of Captive Screws, here at Fastenright we can provide custom manufactured fasteners in whichever size, material or finish you require.

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Choosing Captive Screws

Selecting the appropriate captive screws involves considering factors that align with the intended purpose, security needs, and practicality of the application. Captive screws are commonly used in situations where regular maintenance or access is required while preventing the loss of fasteners.

First, evaluate the environment. If the application is exposed to moisture, chemicals, or extreme temperatures, opt for captive screws made from corrosion-resistant materials like stainless steel.

Assess the security requirements. Captive screws can vary in their level of tamper resistance. For applications demanding high security, consider captive screws with tamper-proof heads that deter unauthorised removal.

Think about the access frequency. If frequent removal is necessary, captive screws with a knurled head could allow for quick and efficient access. For applications where access is infrequent, a more secure, tamper-resistant option might be more suitable.

Consider the aesthetics. Captive screws are available in various head styles and finishes. Select a style that complements the overall design while maintaining the required functionality.

Evaluate the installation process. Some captive screws require specialised tools, while others provide tool-less installation for added convenience.

Lastly, ensure compatibility. Match the thread size and type of the captive screw with the mating component for a secure fit.

By evaluating factors such as environmental conditions, security needs, access frequency, aesthetics, installation process, and compatibility, you can choose the right captive screws that strike a balance between functionality, security, and ease of use for your specific application.

Don’t hesitate to contact our experts at Fastenright for help, advice and a competitive price on the ideal captive screws, whatever your application.

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