S-91273A384 M5 Shoulder Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 18-8 stainless steel construction, ideal for harsh environments and extended service life.
• High-strength performance with a tensile strength of 70,000 psi and Rockwell B55 hardness for reliable load-bearing in demanding applications.
• Precise component alignment enabled by the 5mm shoulder diameter with tight tolerance, ensuring accurate positioning and reduced wear.
• Secure and efficient installation using the 2.5 mm hex socket drive and knurled head for superior grip and torque application.
• Robust thread engagement with Class 5g6g fit and coarse M5x0.8 thread, providing strong fastening and vibration resistance.
• Environmental and regulatory compliance meeting RoHS 3 and REACH standards, ensuring safety and suitability for global markets.
• Versatile industrial use with a 6mm shoulder length for spacing and supporting rotating parts like gears and pulleys.

Professional Applications & Engineering Value

This M5 shoulder screw is engineered to address critical alignment and durability challenges in mechanical assemblies. The 18-8 stainless steel material offers excellent resistance to oxidation and corrosion, making it suitable for applications exposed to moisture, chemicals, or outdoor conditions. The precision shoulder diameter of 5mm with a tight tolerance ensures exact positioning of components such as bearings, linkages, and rotating mechanisms, minimizing misalignment and subsequent wear. The hex socket drive and knurled head texture facilitate easy installation and removal, even in confined spaces, reducing assembly time and improving maintenance efficiency. With a coarse thread pitch and Class 5g6g thread fit, it provides strong, reliable fastening that resists loosening under vibration, commonly required in automotive, machinery, and electronics industries. This screw delivers consistent performance, enhancing the longevity and reliability of your equipment.

Specification Summary & Compliance

This shoulder screw features a metric M5x0.8 coarse thread with a Class 5g6g thread fit for precise engagement. The shoulder diameter is 5 mm with a tolerance of -0.04 to -0.01 mm, and the shoulder length is 6 mm with a tolerance of 0 to 0.25 mm, ensuring high dimensional accuracy. It complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming it is free from hazardous substances and suitable for industrial and consumer applications globally.