S-93897A580 5/16"-18 Shoulder Screws

Key Features & Benefits at a Glance

• Exceptional corrosion resistance with Nylon 6/6 plastic construction, eliminating rust and chemical degradation in harsh environments.
• Reliable electrical insulation properties for safe use in electrical assemblies and sensitive electronic equipment.
• Wide operating temperature range from -40° to 185° F, ensuring dimensional stability and performance in varied conditions.
• Precise Class 2A thread fit for smooth assembly and consistent, secure fastening with standard UNC coarse threads.
• Durable hex socket drive allows for high torque application and a clean, low-profile head design.
• Accurate shoulder diameter and length provides a stable pivot, bearing surface, or location guide for rotating parts.
• Compliance with RoHS 3 regulations ensures environmental safety and meets international manufacturing standards.

Professional Applications & Engineering Value

This Nylon 6/6 Plastic Shoulder Screw is engineered to solve common industrial challenges where metal fasteners fall short. Its non-conductive and corrosion-resistant properties make it ideal for electrical insulation in control panels, conveyor systems, and food processing machinery, preventing short circuits and contamination. The precise 1 3/4" shoulder length and smooth socket head design ensure accurate alignment and secure mounting of components like gears, pulleys, and linkages, reducing wear and maintenance. With a temperature stability from -40° to 185°F, it performs reliably in both freezing and moderately high-heat environments, offering a lightweight, durable alternative that resists vibration loosening and chemical exposure.

Specification Summary & Compliance

This shoulder screw features a 5/16"-18 UNC coarse thread with a Class 2A thread fit for standard tolerance and easy assembly. The shoulder diameter is 3/8" with a tolerance of -0.012" to -0.002", and the shoulder length is 1 3/4" with a tolerance of -0.015" to 0.015" for precise engineering applications. Manufactured in accordance with common inch system standards, it is fully RoHS 3 (2015/863/EU) Compliant, ensuring it is free from hazardous substances for safe use in various industries.