S-96654A111 M3 Shoulder Screws

Key Features & Benefits at a Glance

• Vibration-resistant performance with a nylon patch thread locker that maintains secure fastening from -70° to 250°F, reducing maintenance in dynamic environments.
• Exceptional durability and corrosion resistance thanks to 18-8 stainless steel construction and passivated finish, ideal for harsh industrial settings.
• High tensile strength of 70,000 psi ensures reliable load-bearing capacity for heavy-duty applications.
• Precise shoulder fit and Class 6g thread tolerance enable accurate alignment and smooth assembly in precision machinery.
• Easy installation and removal with a hex socket head design, allowing efficient tool engagement in confined spaces.
• Compliance with RoHS 3 and REACH regulations guarantees environmental safety and global market acceptance.
• Coarse thread pitch (0.5mm) provides quick assembly and strong holding power in various materials.

Professional Applications & Engineering Value

This M3 shoulder screw is engineered to address common industrial challenges such as misalignment and vibration-induced loosening. The 4mm shoulder length and precise shoulder diameter tolerance ensure exact component positioning in assemblies like rotating shafts, bearings, and gears, reducing wear and improving operational accuracy. Made from 18-8 stainless steel with a passivated finish, it offers superior corrosion resistance in moist or chemical-exposed environments. The integrated nylon patch thread locker secures the fastener against shocks and temperature fluctuations, making it ideal for automotive, aerospace, and machinery applications where reliability is critical. Its hex socket head design facilitates easy access in tight spaces, streamlining maintenance and reducing downtime.

Specification Summary & Compliance

This shoulder screw features a Class 6g thread fit for metric precision, with a shoulder diameter tolerance of -0.025 to 0 mm and shoulder length tolerance of 0 to 0.05 mm to ensure consistent performance. It adheres to RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) compliance, supporting safe and sustainable industrial use. The manufacturing standards include a coarse M3x0.5mm thread and precise shoulder specifications for reliable integration in high-stress assemblies.