S-94361A529 M5 Shoulder Screws

Key Features & Benefits at a Glance

• Exceptional Strength & Durability: Crafted from high-grade alloy steel with a Rockwell C32 hardness, this shoulder screw delivers a robust 140,000 psi tensile strength, ensuring reliable performance in demanding mechanical assemblies.
• Precision Shoulder for Accurate Alignment: Features a 50mm shoulder length with a tight tolerance of ±0.25mm, providing exact positioning and smooth rotation for components like gears and bearings.
• Corrosion-Resistant Black Oxide Finish: The black oxide coating offers enhanced protection against rust and wear, extending the screw's service life in harsh industrial environments.
• Secure Hex Drive for Easy Installation: Equipped with a 3mm hex socket drive, allowing for high-torque tightening with standard tools, reducing the risk of stripping and ensuring a firm hold.
• Reliable Thread Performance: The M5x0.8 coarse thread with Class 5g6g fit ensures easy engagement and secure fastening, minimizing the chance of cross-threading in high-vibration applications.
• Compliance with Environmental Standards: Meets RoHS 3 and REACH regulations, making it a safe and sustainable choice for global industrial use without compromising on performance.

Professional Applications & Engineering Value

This M5 shoulder screw is engineered to address critical alignment and durability challenges in precision machinery. The alloy steel construction, combined with a black oxide finish, provides superior resistance to corrosion and mechanical stress, ideal for applications in automotive assemblies, robotics, and conveyor systems. The precisely machined shoulder with minimal diameter tolerance ensures components like pulleys and linkages rotate smoothly without misalignment, reducing wear and maintenance costs. Its coarse thread and hex drive design facilitate quick installation in tight spaces, enhancing assembly efficiency while maintaining high tensile strength under load. By integrating these features, this screw delivers long-term reliability in industrial settings where precision and endurance are paramount.

Specification Summary & Compliance

This shoulder screw adheres to metric standards with an M5x0.8 coarse thread and Class 5g6g thread fit for consistent performance. The shoulder diameter tolerance is tightly controlled from -0.072 to -0.01 mm, and the shoulder length tolerance is 0 to 0.25 mm, ensuring high dimensional accuracy. It is manufactured in compliance with RoHS 3 (2015/863/EU) with exemption 6(a) for lead in steel and REACH (EC 1907/2006), confirming its suitability for regulated industrial applications.