Thread Locking Set Screws (Nylon Patch/Pellet)

Socket set screws are highly valued for their simplicity, effectiveness, and precise connections across a wide range of applications. Mechanical applications often utilize set screws to prevent rotational changes and maintain proper alignment. If the environment is particularly volatile, applications might require a thread locking set screw featuring a nylon patch or a nylon pellet. Both nylon patch and pellet mechanisms are designed to prevent the screw from loosening and are heavily utilized in applications with vibration or movement.

We offer these high-quality socket set screws in several finishes and locking mechanisms:

Nylon Locking Mechanisms

• Nylon Pellet: This is a small, cylindrical nylon insert added directly into the threaded shaft. As the screw is installed, the nylon distorts, causing friction and further securing the hold. Set screws with nylon pellets may be multi-use, provided the user inspects the nylon for damage before reuse.
• Nylon Patch: This is a specialized coating applied to the screw’s threading during manufacturing. The colorful patch creates friction between the bolt threads and the base material. While there are after-market options, factory-applied patches reduce labor costs and installation time. Like pellets, patched screws may also be multi-use, but require inspection as the patch will wear over time.

Available Finishes

• Black Oxide: A standard coating for socket products, offering uniform color, reduced glare, and a minimally protective layer on the bare steel.
• Stainless Steel (18-8/A2): Provides superior corrosion resistance with high durability for harsh environments.

You can choose from a variety of point styles, including Cup Point, Flat Point, Cone Point, and Oval Point, to match your specific needs. View our general category of Socket Set Screws for more options, or explore our full selection of Socket Products and general Fasteners.