S-90263A235 M4 Shoulder Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 316 stainless steel and passivated finish, ideal for harsh environments like chemical processing or marine applications.
• Precise alignment and secure positioning due to the 4mm shoulder length with tight tolerances, reducing assembly errors and improving component stability.
• High strength and durability with Rockwell B79 hardness and 70,000 psi tensile strength, ensuring reliable performance under mechanical stress.
• Easy installation and removal using a standard 2.5mm hex drive, minimizing tool slippage and speeding up maintenance tasks.
• Accurate thread engagement with Class 6g fit and coarse M4 x 0.7mm threads, providing secure fastening and vibration resistance in dynamic setups.
• Compliance with environmental regulations including RoHS 3 and REACH, making it safe for use in regulated industries without harmful substances.
• Versatile right-hand metric threading for broad compatibility in global machinery and equipment designs.

Professional Applications & Engineering Value

This precision shoulder screw in 316 stainless steel with a socket head design addresses critical engineering challenges in high-stakes environments. The passivated finish enhances corrosion resistance, prolonging service life in humid or chemically aggressive settings like industrial machinery, automotive assemblies, and medical devices. Its M4 x 0.7mm coarse thread and Class 6g fit ensure quick, reliable fastening while minimizing cross-threading risks. The precisely machined shoulder provides stable alignment for rotating parts, reducing wear and maintenance downtime. Ideal for precision applications requiring tight tolerances, this screw supports efficient production and long-term reliability in B2B sectors.

Specification Summary & Compliance

This metric shoulder screw adheres to precise dimensional standards, including a shoulder diameter tolerance of -0.025 to 0 mm and length tolerance of 0 to 0.05 mm for consistent fit. Threads conform to Class 6g ISO tolerance, ensuring compatibility with metric assemblies. Manufactured under strict guidelines, it is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, guaranteeing environmental safety and suitability for global industrial use.