S-92981A142 M3 ISO 7379 Shoulder Screws

Key Features & Benefits at a Glance

• Enhanced Durability: Alloy steel construction with black oxide finish provides superior corrosion resistance and long-lasting performance in demanding industrial environments.
• Precision Alignment: 4mm shoulder diameter with tight tolerance ensures accurate positioning and reduces wear in assemblies, improving component lifespan.
• High Load Capacity: 140,000 psi tensile strength and 84,000 psi minimum shear strength offer reliable fastening under high-stress conditions.
• Secure Fastening: Class 5g6g thread fit with M3x0.5mm coarse pitch enables quick, stable installation and vibration resistance.
• Easy Installation: Hex socket head with 2mm drive allows for efficient tool engagement in confined spaces, speeding up assembly processes.
• Industry Compliance: Meets ISO 7379 standards and RoHS 3/REACH regulations, ensuring safety and reliability for global applications.
• Consistent Performance: Rockwell C32 hardness and standardized shoulder length (8mm) deliver uniform strength and repeatable results in precision engineering.

Professional Applications & Engineering Value

This M3 shoulder screw is engineered to address common industrial challenges such as misalignment and component wear in machinery. The alloy steel material, combined with a black oxide finish, enhances corrosion resistance, making it ideal for applications in automotive, electronics, and precision equipment where environmental factors are a concern. The socket head design with hex drive allows for easy access in tight spaces, reducing assembly time and improving workflow efficiency. With a coarse thread pitch and Class 5g6g thread fit, it ensures secure fastening and minimizes loosening under vibration, providing reliable performance in dynamic settings. This screw is commonly used in pivots, spacers, and rotating assemblies, offering a robust solution for maintaining alignment and durability in industrial shoulder screw applications.

Specification Summary & Compliance

This shoulder screw features precise dimensions, including a shoulder diameter of 4mm with a tolerance of -0.072 to -0.01 mm and a shoulder length of 8mm with a tolerance of 0 to 0.25 mm, ensuring high accuracy for metric assemblies. The thread fit adheres to Class 5g6g standards, providing consistent engagement. It complies with ISO 7379 for manufacturing specifications and meets RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming environmental safety and suitability for various industrial uses.