S-93897A410 1/4"-20 Shoulder Screws

Key Features & Benefits at a Glance

• Corrosion-resistant performance with Nylon 6/6 material, ideal for harsh or electrically sensitive environments without risk of rust or galvanic corrosion.
• Precise alignment and spacing ensured by the 5/16" shoulder diameter, providing consistent pivot points and reducing assembly misalignment.
• High-strength, lightweight construction offers excellent durability while minimizing overall component weight in moving assemblies.
• Easy installation and removal with the hex socket drive, allowing secure torque application in confined spaces without stripping.
• Wide temperature tolerance from -40° to 185°F maintains mechanical properties in varied operating conditions.
• Reliable thread engagement with 1/4"-20 UNC coarse threads and Class 2A fit, ensuring consistent fastening in plastic or soft materials.
• Environmental compliance with RoHS 3, making it suitable for regulated industries and eco-conscious manufacturing.

Professional Applications & Engineering Value

This Nylon 6/6 plastic shoulder screw is engineered to address critical challenges in precision assembly, such as electrical insulation, corrosion resistance, and weight reduction. The 5/16" shoulder diameter provides a stable bearing surface for rotating components, minimizing wear in linkages, pivots, and guides. With 1/4"-20 UNC coarse threads and a Class 2A thread fit, it delivers secure fastening in plastic housings or soft substrates without cross-threading. The hex socket drive enables high-torque installation in tight spaces, common in electronics, automotive, and conveyor systems. Its smooth head texture and right-hand thread direction ensure compatibility with standard tools, streamlining maintenance and reducing downtime in industrial settings.

Specification Summary & Compliance

This shoulder screw adheres to UNC coarse thread standards with a Class 2A thread fit for consistent dimensional accuracy. The shoulder diameter tolerance is -0.012" to -0.002", and shoulder length tolerance is -0.015" to 0.015", ensuring precise assembly. Manufactured from Nylon 6/6 plastic, it operates within a temperature range of -40° to 185°F and is fully RoHS 3 (2015/863/EU) compliant, meeting environmental and safety regulations for global use.