S-90269A550 M4 Shoulder Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 316 stainless steel construction, ideal for harsh industrial environments and outdoor applications.
• Enhanced durability and wear resistance from the black oxide finish, providing a protective layer against abrasion and oxidation.
• High mechanical strength offering 70,000 psi tensile strength and 35,000 psi minimum shear strength for reliable performance under heavy loads.
• Precise component alignment and spacing with a smooth 19mm shoulder, ensuring accurate positioning in assemblies.
• Secure and efficient installation using a 3mm hex socket drive, allowing for high torque application without slippage.
• Consistent thread engagement with Class 5g6g thread fit and coarse M4 x 0.7mm pitch, reducing the risk of cross-threading.
• Compliance with environmental standards, meeting RoHS 3 and REACH regulations for safe and sustainable use.

Professional Applications & Engineering Value

This M4 shoulder screw is engineered to address common challenges in precision machinery, such as misalignment and component wear. The 316 stainless steel material provides excellent resistance to chemicals and moisture, making it suitable for industrial applications in marine, chemical processing, and food equipment. The black oxide finish not only enhances corrosion protection but also reduces friction during assembly. With a 10mm thread length and 19mm shoulder, it ensures stable positioning in rotating parts like bearings and pulleys, minimizing vibration and extending service life. The hex socket head allows for compact designs and easy access in confined spaces, supporting efficient maintenance and reducing downtime.

Specification Summary & Compliance

This shoulder screw features a Class 5g6g thread fit for precise tolerance, with shoulder diameter tolerance of -0.072 to -0.01 mm and shoulder length tolerance of 0 to 0.25 mm, ensuring consistent performance in metric assemblies. It complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming its adherence to environmental and safety standards for industrial use.