S-93897A588 5/16"-18 Shoulder Screws

Key Features & Benefits at a Glance

• Corrosion-resistant Nylon 6/6 construction eliminates rust and chemical degradation in harsh environments, reducing maintenance costs.
• Precise 2" shoulder length provides accurate spacing and alignment for rotating components like gears and pulleys.
• Class 2A thread fit with 5/16"-18 UNC coarse thread ensures easy assembly and reliable fastening in plastic and soft material applications.
• Hex socket drive design allows for high-torque installation in confined spaces, improving assembly efficiency.
• Wide operating temperature range (-40° to 185° F) maintains integrity in both freezing and elevated heat conditions.
• RoHS 3 compliance guarantees environmental safety and meets global regulatory standards for electronics and consumer goods.
• Smooth head texture and standard shoulder fit prevent damage to mating surfaces and ensure consistent performance.

Professional Applications & Engineering Value

This Nylon 6/6 shoulder screw is engineered to solve common industrial challenges such as galvanic corrosion, electrical insulation, and weight reduction. The 2" shoulder length acts as a precise axle or pivot in assemblies, eliminating the need for additional bushings or spacers in machinery, conveyor systems, and electronic enclosures. Its right-hand UNC coarse thread and hex socket drive facilitate quick installation in automated production lines, while the temperature resistance ensures reliability in outdoor equipment and automotive applications. The non-conductive and non-magnetic properties of nylon make it ideal for sensitive electronic devices, reducing interference and enhancing safety.

Specification Summary & Compliance

This shoulder screw adheres to UNC thread standards with a Class 2A thread fit for consistent engagement. The shoulder diameter tolerance is -0.012" to -0.002", and shoulder length tolerance is -0.015" to 0.015", ensuring precise dimensional accuracy. It is manufactured to meet RoHS 3 (2015/863/EU) compliance, confirming it is free from hazardous substances, and is suitable for use in regulated industries requiring environmental and safety conformance.