S-90269A208 M3 Shoulder Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 316 Stainless Steel construction, ideal for harsh environments and extended service life
• Exceptional mechanical strength offering 70,000 psi tensile strength and 35,000 psi shear strength for reliable performance under load
• Precision alignment and spacing enabled by the 18mm shoulder with controlled tolerances, reducing component wear
• Secure and efficient installation with a 2mm hex drive and knurled head for superior grip and torque transmission
• Consistent thread engagement ensured by Class 5g6g thread fit and M3x0.5 coarse pitch for quick assembly
• Compliance with global standards including RoHS 3 and REACH, ensuring safety and environmental responsibility
• Durable material hardness rated at Rockwell B79, providing excellent resistance to deformation and wear

Professional Applications & Engineering Value

This M3 shoulder screw is engineered to address critical alignment and durability challenges in industrial applications. The 316 Stainless Steel material provides outstanding resistance to corrosion, making it suitable for use in chemical processing, marine environments, and medical devices where exposure to moisture and chemicals is common. The 18mm precision shoulder acts as a reliable pivot or spacer, maintaining exact component positioning and reducing stress on threaded sections. Combined with the coarse thread pitch and Class 5g6g thread fit, this screw ensures rapid, secure fastening in assemblies requiring high repeatability. The knurled socket head with a 2mm hex drive allows for high-torque installation without slippage, enhancing assembly efficiency and reducing the risk of tool damage in automated or manual settings.

Specification Summary & Compliance

This metric shoulder screw adheres to precise dimensional standards, including a shoulder diameter tolerance of -0.072 to -0.01 mm and shoulder length tolerance of 0 to 0.25 mm. The M3x0.5 coarse thread conforms to Class 5g6g fit specifications, ensuring compatibility and performance in metric assemblies. Manufactured from 316 Stainless Steel with a hardness of Rockwell B79, it meets rigorous mechanical requirements. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming its adherence to environmental and safety standards for global use.