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Socket Shoulder Screws, Nylon Patch, Thermal Black Oxide, Alloy (Inch)

Alloy steel socket shoulder screws with a nylon patch and thermal black oxide finish offer a secure, precision‑engineered fastening solution for assemblies requiring alignment, pivoting, sliding, or guided movement. Also known as shoulder bolts or stripper bolts, these fasteners feature a precision‑ground shoulder that serves as a bearing surface, guide, or pivot point in machinery and tooling systems.
The integrated nylon patch provides prevailing‑torque locking action, helping prevent loosening caused by vibration, shock, or repetitive cycling. This pre‑applied locking element eliminates the need for liquid threadlocker while offering clean, reusable performance across multiple installations.
The thermal black oxide coating enhances wear resistance, improves lubricity during assembly, and delivers a sleek, uniform black finish ideal for industrial and OEM environments.
For large scale orders, request a quote to receive our best pricing available for your custom order.
These nylon‑patch socket shoulder screws are engineered for high‑precision applications such as automation equipment, robotics, molds, dies, fixtures, linkages, conveyors, and motion‑control assemblies. The smooth shoulder allows components to rotate or slide consistently, while the threaded portion provides strong clamping force.
The nylon patch locking element ensures stable torque retention, making these screws ideal for dynamic systems exposed to vibration or movement. Their alloy steel construction provides excellent tensile strength and fatigue resistance, while the black oxide finish adds mild corrosion resistance and enhances ease of installation.
Available in multiple shoulder diameters, lengths, and thread sizes to meet rigorous OEM, engineering, and industrial design requirements.
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