S-92981A308 M8 ISO 7379 Shoulder Screws

Key Features & Benefits at a Glance

• Exceptional strength and durability with 140,000 psi tensile strength and Rockwell C32 hardness, ensuring reliable performance in demanding industrial applications.
• Precise alignment and smooth rotation due to the 60mm shoulder length with tight tolerance, minimizing wear and simplifying assembly.
• Corrosion-resistant black oxide finish on alloy steel enhances longevity and provides a sleek, professional appearance in various environments.
• Easy installation and removal with a 5mm hex socket drive, allowing for high torque application without slippage in confined spaces.
• Accurate and secure fastening thanks to the M8 coarse thread with Class 5g6g fit, reducing the risk of cross-threading and ensuring consistent hold.
• Compliance with international standards including ISO 7379, RoHS 3, and REACH, guaranteeing safety and reliability for global industrial use.
• Versatile metric design with a 16mm smooth head diameter, making it ideal for precision machinery, automotive, and automation systems.

Professional Applications & Engineering Value

This M8 shoulder screw is engineered to address common industrial challenges, such as misalignment and component wear in rotating assemblies. The alloy steel construction with a black oxide finish provides superior resistance to corrosion and abrasion, extending service life in harsh conditions like manufacturing equipment and automotive systems. Its 60mm shoulder length ensures precise shaft positioning, reducing friction and maintenance needs in precision applications such as conveyor systems and robotics. The hex socket drive allows for efficient torque transfer, speeding up assembly while maintaining integrity. By integrating ISO 7379 compliance and a coarse thread pitch, it delivers reliable performance in high-vibration environments, making it a trusted choice for engineers seeking durability and ease of use.

Specification Summary & Compliance

This shoulder screw adheres to precise dimensional tolerances, including a shoulder diameter tolerance of -0.072 to -0.01 mm and shoulder length tolerance of 0 to 0.25 mm, ensuring consistent fit. The thread fit is Class 5g6g per metric standards, providing reliable engagement. It meets ISO 7379 specifications for quality and performance, and is compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming it is free from hazardous substances for safe industrial use.