S-90269A946 M33 ISO 7379 Shoulder Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 316 stainless steel construction, ideal for harsh industrial and marine environments.
• Enhanced durability and wear resistance provided by the black oxide finish, extending the screw's service life.
• High mechanical strength with 70,000 psi tensile and 35,000 psi shear strength for reliable performance in demanding applications.
• Precise alignment and smooth rotation ensured by the 50mm shoulder with controlled diameter and length tolerances.
• Secure and efficient installation using the 17mm hex socket drive, allowing for high torque application without slippage.
• Reliable coarse thread engagement with M33x3.5mm Class 5g6g thread fit for quick assembly and vibration resistance.
• Compliance with international standards including ISO 7379, RoHS 3, and REACH, ensuring product quality and environmental safety.

Professional Applications & Engineering Value

This M33 shoulder screw is engineered to address critical alignment and high-load challenges in industrial machinery. The 316 stainless steel material offers exceptional resistance to chemicals and corrosion, making it suitable for food processing, marine, and chemical plant equipment. The black oxide finish not only adds an extra layer of protection against wear but also reduces galling during assembly. The precision shoulder diameter and length provide a stable bearing surface for rotating components like gears and pulleys, minimizing misalignment and reducing wear on mating parts. With its coarse metric thread and hex socket drive, it ensures quick, secure fastening in high-vibration environments, delivering long-term reliability and reduced maintenance costs for industrial fastener systems.

Specification Summary & Compliance

This shoulder screw features a Class 5g6g thread fit per metric standards, ensuring precise thread engagement. The shoulder diameter tolerance is -0.072 to -0.01 mm, and shoulder length tolerance is 0 to 0.25 mm, guaranteeing accurate alignment. It is manufactured in compliance with ISO 7379 for dimensional consistency and meets RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming its adherence to environmental and safety standards for industrial use.