S-90269A871 M12 Shoulder Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 316 stainless steel construction, ideal for harsh environments and chemical exposure.
• Exceptional mechanical strength offering 70,000 psi tensile strength and 35,000 psi shear strength for high-stress applications.
• Precise component alignment enabled by the 50mm shoulder length and controlled diameter tolerance for reduced assembly play.
• Enhanced grip and tool engagement from the knurled head and 10mm hex socket drive, preventing slippage during installation.
• Reliable thread performance with Class 5g6g metric coarse thread fit, ensuring consistent fastening and interchangeability.
• Durable, wear-resistant surface due to the black oxide finish, which also provides a sleek, non-reflective appearance.
• Compliance with global regulations including RoHS 3 and REACH, ensuring safety and environmental standards are met.

Professional Applications & Engineering Value

This M12 shoulder screw is engineered to address critical challenges in precision assembly and machinery. The 316 stainless steel material provides excellent resistance to corrosion and oxidation, making it suitable for marine, chemical processing, and food industry applications where moisture and aggressive agents are present. The 50mm shoulder length and precise 20mm shoulder diameter act as a pivot or spacer, maintaining accurate alignment between components and reducing wear on moving parts. Combined with the Class 5g6g thread fit and coarse thread pitch, it ensures secure, vibration-resistant fastening in dynamic environments. The black oxide finish not only enhances durability but also minimizes galling, while the knurled socket head allows for easy installation with standard hex tools, streamlining maintenance and reducing downtime in industrial operations.

Specification Summary & Compliance

This shoulder screw features a Metric M12x1.75mm coarse thread with Class 5g6g thread fit per ISO standards, ensuring dimensional accuracy and compatibility. The shoulder diameter tolerance is -0.072 to -0.01 mm, and shoulder length tolerance is 0 to 0.25 mm, providing precise fit for engineering applications. 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 supply chains.