S-91273A392 M5 Shoulder Screws

Key Features & Benefits at a Glance

• Exceptional corrosion resistance with 18-8 stainless steel construction, ideal for harsh industrial environments.
• High tensile strength of 70,000 PSI ensures reliable performance under heavy loads and stress.
• Precise shoulder diameter tolerance (-0.04 to -0.01 mm) allows for accurate alignment and smooth rotation in assemblies.
• Knurled hex socket head with 2.5 mm drive provides superior grip and reduces tool slippage during installation.
• Class 5g6g thread fit guarantees consistent, secure fastening with standard M5x0.8 coarse pitch threads.
• Rockwell B55 hardness offers excellent durability and resistance to wear over extended use.
• Compliance with RoHS 3 and REACH regulations ensures safety and environmental standards for global applications.

Professional Applications & Engineering Value

This M5 shoulder screw is engineered to address critical alignment and pivot point challenges in machinery and equipment. The 20mm shoulder length with tight diameter tolerance provides a stable bearing surface, reducing wear on moving parts and ensuring precise component positioning. Made from 18-8 stainless steel, it resists rust and corrosion in demanding settings like automation systems, conveyor assemblies, and precision instruments. The hex socket drive with a knurled head enhances torque application, minimizing strip-out risks and improving maintenance efficiency. Its coarse thread (M5x0.8) and high tensile strength make it suitable for applications requiring robust, vibration-resistant fastening, from industrial robotics to electronic enclosures.

Specification Summary & Compliance

This metric shoulder screw features precise dimensions: a shoulder diameter of 5 mm with a tolerance of -0.04 to -0.01 mm, shoulder length of 20 mm (tolerance 0 to 0.25 mm), and thread length of 9.5 mm. Threads conform to Class 5g6g fit under ISO metric standards, ensuring reliable engagement. Manufacturing adheres to industry norms for hex socket shoulder screws, with compliance to RoHS 3 (2015/863/EU) and REACH (EC 1907/2006), confirming it is free of restricted substances for safe use in various sectors.