S-90269A644 M6 ISO 7379 Shoulder Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 316 Stainless Steel construction, ideal for harsh or humid industrial environments.
• Precise component alignment enabled by the 8mm shoulder diameter and 4mm shoulder length, reducing assembly errors.
• High mechanical strength with 70,000 psi tensile strength and Rockwell B79 hardness for reliable performance under load.
• Secure, non-slip installation thanks to the knurled head and 4mm hex socket drive, allowing for high-torque tightening.
• Consistent thread engagement with Class 5g6g thread fit and M6x1mm coarse pitch for quick, reliable fastening.
• Guaranteed dimensional accuracy and interchangeability, manufactured to meet the stringent ISO 7379 standard.
• Safe for sensitive applications with full compliance to RoHS 3 and REACH environmental regulations.

Professional Applications & Engineering Value

This M6 shoulder screw is engineered to solve common assembly challenges in precision machinery, automation systems, and fixture design. The 316 Stainless Steel material offers exceptional resistance to chemicals and oxidation, making it suitable for food processing, marine, and pharmaceutical equipment where cleanliness and durability are critical. The shoulder feature acts as a precise pivot, bearing, or spacer, eliminating the need for additional components and reducing points of failure. The coarse metric thread (M6x1mm) ensures rapid assembly and disassembly in maintenance-heavy operations, while the socket head with knurled texture provides a secure grip for tools, preventing cam-out during high-stress installations. This combination of a robust socket head, precise shoulder diameter, and corrosion-resistant properties delivers long-term reliability and reduces total cost of ownership in demanding industrial applications.

Specification Summary & Compliance

This shoulder screw features a Class 5g6g thread fit for standard metric applications, ensuring proper clearance and engagement. The shoulder diameter tolerance is held to -0.072 to -0.01 mm and shoulder length tolerance is 0 to 0.25 mm, guaranteeing precise dimensional control. It is manufactured in accordance with ISO 7379 specifications for metric shoulder screws. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming it is free of restricted hazardous substances and safe for use in regulated markets.