S-90269A509 M4 Shoulder Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance from 316 stainless steel with black oxide finish, ideal for harsh environments and chemical exposure.
• Precise alignment and smooth rotation ensured by the 22mm shoulder length with tight tolerances, reducing wear on mating parts.
• High-strength performance with 70,000 psi tensile strength and 35,000 psi shear strength, providing reliable fastening under heavy loads.
• Secure, non-slip installation thanks to the knurled head and 2.5mm hex drive, allowing for high torque application without tool slippage.
• Accurate and consistent threading with Class 5g6g thread fit and M4 x 0.7mm coarse pitch, ensuring easy assembly and vibration resistance.
• Environmental and regulatory compliance with RoHS 3 and REACH standards, making it safe for various industrial and export applications.
• Durable, long-lasting operation supported by Rockwell B79 hardness, maintaining integrity in high-stress mechanical setups.

Professional Applications & Engineering Value

This M4 shoulder screw is engineered to address common industrial challenges such as misalignment, corrosion, and mechanical failure in precision assemblies. The 316 stainless steel construction, combined with a black oxide finish, offers exceptional resistance to rust and chemicals, making it suitable for marine, automotive, and food processing equipment. The knurled head and hex drive design facilitate secure handling and installation, reducing downtime in automated systems. With a 22mm shoulder length and precise Class 5g6g thread fit, it ensures accurate positioning and smooth rotational movement in linkages, bearings, and pivots, enhancing the lifespan and reliability of machinery.

Specification Summary & Compliance

This shoulder screw adheres to metric system standards with an M4 x 0.7mm coarse thread and Class 5g6g thread fit for precise tolerance. Shoulder diameter is 5 mm with a tolerance of -0.072 to -0.01 mm, and shoulder length is 22 mm with a tolerance of 0 to 0.25 mm. It complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental safety and suitability for global industrial applications.