S-90269A166 M8 ISO 7379 Shoulder Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 316 Stainless Steel construction, ideal for harsh chemical and marine environments
• Enhanced grip and torque application from the knurled socket head and 5mm hex drive, reducing tool slippage
• High mechanical strength offering 70,000 PSI tensile and 35,000 PSI shear strength for demanding loads
• Precise component alignment with a 40mm shoulder length and controlled diameter tolerance for stable assemblies
• Reliable coarse thread engagement with Class 5g6g fit, ensuring quick installation and vibration resistance
• Long-term durability backed by Rockwell B79 hardness, maintaining performance under repetitive stress
• Global compliance assurance meeting ISO 7379, RoHS 3, and REACH standards for safe, regulated use

Professional Applications & Engineering Value

Engineered for precision, this M8 shoulder screw in 316 Stainless Steel addresses critical challenges in assembly and motion control systems. The 40mm shoulder length provides a stable pivot or spacer, minimizing misalignment in machinery, while the coarse M8x1.25 thread ensures rapid, secure fastening in high-vibration settings like robotics or conveyor systems. Its corrosion-resistant material withstands exposure to moisture and chemicals, extending service life in industrial or outdoor applications. Combined with a knurled socket head for non-slip torque transfer, it delivers reliable performance in automated equipment, ensuring reduced downtime and maintenance costs.

Specification Summary & Compliance

This shoulder screw adheres to ISO 7379 specifications, with a Class 5g6g thread fit for precise metric threading. Dimensions include a shoulder diameter tolerance of -0.072 to -0.01 mm and length tolerance of 0 to 0.25 mm, ensuring consistent assembly. It is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, guaranteeing environmental safety and material integrity.