S-93897A542 5/16"-18 Shoulder Screws

Key Features & Benefits at a Glance

• Corrosion-resistant Nylon 6/6 construction ensures reliable performance in humid or chemical environments, eliminating rust and galvanic corrosion risks.
• Precision 3/8" shoulder diameter provides consistent alignment and spacing in assemblies, reducing wear and simplifying installation.
• 5/8" shoulder length with tight tolerances offers stable rotational support for moving parts, enhancing operational smoothness and longevity.
• 5/16"-18 UNC coarse threads with Class 2A fit enable quick assembly and secure fastening in plastic or soft materials, minimizing cross-threading.
• Hex socket drive design allows for high-torque installation in confined spaces, improving assembly efficiency and tool accessibility.
• Wide temperature range (-40° to 185°F) maintains structural integrity and dimensional stability in varied operating conditions.
• RoHS 3 compliance guarantees environmental safety and regulatory adherence for global supply chain requirements.

Professional Applications & Engineering Value

This Nylon 6/6 shoulder screw is engineered to address common industrial challenges like electrical insulation, weight reduction, and corrosion prevention. Its smooth shoulder with precise diameter and length tolerances acts as a reliable pivot or spacer in machinery, ensuring components like gears, bearings, or panels rotate freely without metal-on-metal contact. The UNC coarse threads and Class 2A fit provide strong holding power in plastic housings or soft substrates, reducing the risk of stripping. Ideal for electrical enclosures, conveyor systems, and food processing equipment, this fastener combines durability with non-conductive properties to enhance safety and reduce maintenance in demanding environments.

Specification Summary & Compliance

This shoulder screw adheres to UNC thread standards with a Class 2A thread fit for consistent engagement. The shoulder diameter (3/8") and length (5/8") are manufactured to tight tolerances, ensuring repeatable performance. It is RoHS 3 (2015/863/EU) compliant, meeting environmental regulations for hazardous substance restrictions. The Nylon 6/6 material and hex socket drive align with industry practices for reliable, high-strength plastic fasteners in mechanical assemblies.