S-90269A544 M5 Shoulder Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 316 stainless steel construction, ideal for harsh environments and chemical exposure.
• Enhanced durability and strength offering 70,000 psi tensile strength and Rockwell B79 hardness for reliable, long-term performance.
• Precise component alignment enabled by the smooth, 6mm diameter shoulder with controlled tolerances for consistent assembly.
• Secure and tamper-resistant fastening with a socket head and 3mm hex drive, allowing for high torque application in confined spaces.
• Excellent environmental compliance meeting RoHS 3 and REACH regulations, ensuring safety and suitability for regulated industries.
• Optimized thread engagement with Class 5g6g thread fit and coarse M5 x 0.8mm pitch for quick installation and vibration resistance.
• Reduced galling and minimal maintenance thanks to the black oxide finish, which also provides a sleek, non-reflective appearance.

Professional Applications & Engineering Value

This M5 shoulder screw is engineered to address critical challenges in precision assembly and machinery. Manufactured from 316 stainless steel, it delivers exceptional resistance to corrosion, pitting, and high temperatures, making it suitable for demanding sectors like marine equipment, chemical processing, and food machinery. The black oxide finish enhances surface durability and reduces friction during installation. The integrated smooth shoulder (22mm length) acts as a pivot, bearing surface, or locating dowel, ensuring accurate alignment of components such as gears, pulleys, and linkages. With a hex socket drive, it allows for secure fastening in tight spaces, preventing cam-out and maintaining high tensile strength under dynamic loads. This design minimizes wear, reduces assembly time, and enhances the reliability of industrial systems requiring repeatable precision.

Specification Summary & Compliance

The screw features a metric M5 x 0.8mm coarse thread with a Class 5g6g thread fit per ISO standards, ensuring dimensional accuracy and interchangeability. The shoulder diameter tolerance is -0.072 to -0.01 mm, and shoulder length tolerance is 0 to 0.25 mm, providing precise control for engineering applications. It complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming it is free of hazardous substances and suitable for global industrial use.