S-90269A525 M4 Shoulder Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 316 stainless steel material, ideal for harsh industrial environments and extending service life.
• Enhanced durability and wear resistance from the black oxide finish, providing added protection against abrasion and reducing maintenance needs.
• Precise alignment and secure fastening due to the 40mm shoulder with tight tolerances, minimizing component misalignment in assemblies.
• High strength for demanding applications with 70,000 psi tensile strength and 35,000 psi minimum shear strength, ensuring reliable performance under load.
• Easy installation and removal using the hex socket drive and 2.5 mm drive size, allowing for efficient assembly with standard tools.
• Accurate thread engagement with Class 5g6g thread fit and M4x0.7 coarse thread, reducing the risk of cross-threading and improving joint integrity.
• Improved grip and handling from the knurled head texture, facilitating manual adjustments in tight spaces without slipping.

Professional Applications & Engineering Value

This M4 shoulder screw is engineered to address common industrial challenges such as component misalignment, corrosion-induced failures, and assembly inefficiencies. Made from 316 stainless steel and featuring a black oxide finish, it excels in environments exposed to moisture, chemicals, and high stress, preventing rust and ensuring long-term reliability. The 40mm shoulder length with precise tolerances provides stable bearing surfaces in machinery, pivots, and rotating assemblies, reducing wear and downtime. With a hex socket drive and coarse metric thread, it allows for quick installation in automated systems or maintenance tasks, making it ideal for applications in automotive, aerospace, and manufacturing where corrosion resistance and high tensile strength are critical for operational safety and efficiency.

Specification Summary & Compliance

This shoulder screw adheres to metric system standards with an M4x0.7 thread size and Class 5g6g thread fit for precise dimensional accuracy. The shoulder diameter tolerance ranges from -0.072 to -0.01 mm, and shoulder length tolerance is 0 to 0.25 mm, ensuring consistent performance. It complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, guaranteeing environmental safety and restricted substance-free use in industrial applications.