S-90265A144 M5 Shoulder Screws

Key Features & Benefits at a Glance

• Corrosion-resistant performance with 18-8 stainless steel construction, ideal for harsh industrial environments.
• Precise alignment and smooth rotation thanks to the 20mm shoulder with controlled diameter tolerance for consistent fit.
• High-strength durability offering 70,000 psi tensile strength and Rockwell B55 hardness for reliable load-bearing applications.
• Secure, flush installation enabled by the socket head with hex drive, minimizing protrusion and preventing stripping.
• Accurate and coarse thread engagement with M5x0.8 Class 5g6g threads, ensuring quick assembly and vibration resistance.
• Environmental and regulatory compliance meeting RoHS 3 and REACH standards for safe, sustainable use.
• Versatile industrial application due to metric coarse threading and robust shoulder design for pivots, spacers, and guides.

Professional Applications & Engineering Value

This M5 shoulder screw is engineered to address common assembly challenges in precision machinery, automation, and structural frameworks. The 18-8 stainless steel material provides excellent resistance to rust and oxidation, extending service life in humid or corrosive settings. Its 20mm shoulder length with tight diameter tolerance ensures exact component alignment, reducing wear and misalignment in rotating parts like bearings or linkages. The hex socket drive allows for high-torque installation without head damage, while the coarse thread pitch and Class 5g6g thread fit facilitate rapid, secure fastening in high-vibration environments. Ideal for use in industrial fastening applications such as pivots, guides, and spacers, this screw enhances assembly reliability and reduces maintenance needs.

Specification Summary & Compliance

This shoulder screw features an M5 thread size with 0.8 mm coarse pitch and Class 5g6g thread fit per metric standards, ensuring dimensional accuracy. The shoulder diameter tolerance is -0.072 to -0.01 mm, and shoulder length tolerance is 0 to 0.25 mm, providing precise engineering fits. It complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming it is free from hazardous substances and suitable for global industrial use.