S-90269A703 M6 Shoulder Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 316 Stainless Steel construction, ideal for harsh industrial environments and extended service life.
• Exceptional mechanical strength offering 70,000 psi tensile and 35,000 psi shear strength for reliable performance under high-stress applications.
• Precise and secure assembly ensured by the Class 5g6g thread fit, providing consistent engagement and reducing the risk of loosening.
• Enhanced grip and tool engagement from the knurled socket head and 5 mm hex drive, allowing for efficient installation and removal.
• Durable, wear-resistant surface with a black oxide finish that adds an extra layer of protection against abrasion and corrosion.
• Accurate component alignment facilitated by the precisely machined shoulder with tight diameter and length tolerances.
• Compliance with global environmental standards including RoHS 3 and REACH, ensuring safe and responsible manufacturing.

Professional Applications & Engineering Value

This M6 shoulder screw is engineered to address critical challenges in precision assembly and motion control systems. The 316 Stainless Steel material provides excellent resistance to chemicals, saltwater, and high temperatures, making it suitable for marine, chemical processing, and food-grade equipment. The black oxide finish not only enhances corrosion protection but also reduces light reflection, which is beneficial in optical and sensitive instrumentation. The combination of a knurled socket head and hex drive ensures secure tool engagement, preventing cam-out during high-torque applications. The precisely controlled shoulder diameter and length allow for exact positioning of components like bearings, pulleys, and gears, minimizing misalignment and wear in automated machinery and robotics. This design directly tackles issues of part slippage, corrosion-induced failure, and assembly inaccuracy, delivering long-term reliability.

Specification Summary & Compliance

This shoulder screw features an M6x1mm coarse metric thread with a Class 5g6g thread fit per ISO standards, ensuring dimensional accuracy and interchangeability. The shoulder is manufactured to a diameter tolerance of -0.072 to -0.01 mm and a length tolerance of 0 to 0.25 mm for precise fits. It complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming the absence of restricted hazardous substances. The mechanical properties, including a hardness of Rockwell B79 and a 70,000 psi tensile strength, align with industry requirements for durable fastening solutions.