S-90269A588 M4 Shoulder Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 316 Stainless Steel construction, ideal for harsh environments and extended service life
• High mechanical strength and durability with a tensile strength of 70,000 psi and Rockwell B79 hardness for reliable performance under load
• Precise component alignment and reduced wear thanks to the integral 16mm shoulder with controlled diameter tolerance
• Secure and efficient installation using a standard 3mm hex socket drive, minimizing the risk of stripping
• Consistent and reliable thread engagement ensured by the Class 5g6g thread fit for metric assemblies
• Broad industrial compatibility with a coarse M4 x 0.7mm thread, facilitating quick assembly and disassembly
• Compliance with major environmental regulations including RoHS 3 and REACH, ensuring safety and global acceptance

Professional Applications & Engineering Value

This M4 shoulder screw is engineered to address critical alignment and pivot point requirements in demanding applications. The 316 Stainless Steel material offers exceptional resistance to corrosion from chemicals, saltwater, and industrial atmospheres, making it perfect for machinery, marine equipment, and food processing systems. The 16mm shoulder length with precise diameter control acts as a built-in spacer or bearing surface, eliminating the need for additional bushings and reducing assembly complexity. Paired with the hex socket head, it allows for high-torque installation in confined spaces, ensuring secure fastening in precision assemblies like rotating shafts, linkages, and jigs. This design minimizes misalignment and wear, enhancing the longevity and reliability of your mechanical systems.

Specification Summary & Compliance

This shoulder screw features a Class 5g6g thread fit per metric standards, ensuring dimensional accuracy and interchangeability. The shoulder diameter tolerance is -0.072 to -0.01 mm, and the shoulder length tolerance is 0 to 0.25 mm, supporting precise engineering fits. It is manufactured to meet RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) compliance, confirming it is free of restricted hazardous substances and suitable for global supply chains.