S-91273A322 M3 Shoulder Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 18-8 stainless steel construction, ideal for harsh industrial environments.
• Enhanced torque transmission and grip from the knurled head and 2 mm hex socket drive, reducing tool slippage.
• Precise component alignment and spacing ensured by the 6 mm shoulder with controlled diameter and length tolerances.
• Reliable thread engagement with Class 5g6g thread fit and coarse 0.5 mm pitch for faster assembly and vibration resistance.
• High mechanical strength offering 70,000 psi tensile strength and Rockwell B55 hardness for durable, long-lasting performance.
• Compliance with environmental regulations, being RoHS 3 and REACH compliant for safe and sustainable use.
• Versatile M3 metric thread for broad compatibility in various machinery and equipment assemblies.

Professional Applications & Engineering Value

This M3 shoulder screw is engineered to address common challenges in precision assembly, such as misalignment and component wear. The 18-8 stainless steel material provides excellent corrosion resistance, reducing maintenance in humid or chemically exposed settings. Its knurled head and hex socket drive allow for secure tool engagement, minimizing the risk of stripping during high-torque applications. The precisely machined shoulder with tight tolerances ensures accurate positioning of parts like gears and pulleys, preventing lateral movement and enhancing operational stability. Ideal for industrial machinery, automation systems, and electronic enclosures, this screw delivers consistent performance where reliability and precision are critical.

Specification Summary & Compliance

This shoulder screw features a Class 5g6g thread fit per metric standards, ensuring dimensional accuracy and interchangeability. The shoulder diameter tolerance is -0.04 to -0.01 mm, and shoulder length tolerance is 0 to 0.25 mm, supporting precise engineering requirements. It complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming its adherence to environmental and safety standards for industrial components.