S-92981A516 M12 ISO 7379 Shoulder Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with black oxide finish, extending service life in harsh industrial environments.
• High-strength alloy steel construction ensures reliable performance under heavy loads and stress.
• Precision Class 5g6g thread fit guarantees smooth assembly and secure fastening in demanding applications.
• 80mm shoulder length with controlled tolerance provides accurate positioning and alignment for rotating parts.
• Rockwell C32 hardness offers excellent wear resistance and durability over repeated use.
• Socket head with hex drive allows for easy installation and removal in confined spaces.
• Compliance with ISO 7379, RoHS 3, and REACH ensures global quality standards and environmental safety.

Professional Applications & Engineering Value

This M12 shoulder screw is engineered to address critical alignment and rotational challenges in machinery assembly. The alloy steel material, combined with a black oxide finish, provides robust protection against rust and wear, making it ideal for automotive, aerospace, and heavy equipment applications. The 80mm shoulder length and precise 16mm shoulder diameter enable accurate shaft positioning, reducing vibration and misalignment in pulleys, gears, and linkages. With a coarse thread pitch of 1.75mm and Class 5g6g thread fit, it ensures quick, secure fastening even in high-vibration environments, enhancing overall assembly reliability and reducing maintenance downtime.

Specification Summary & Compliance

This shoulder screw features a metric M12x1.75mm coarse thread with Class 5g6g thread fit per ISO standards, ensuring dimensional accuracy. The shoulder diameter tolerance is -0.072 to -0.01 mm, and shoulder length tolerance is 0 to 0.25 mm for precise engineering fits. It complies with ISO 7379 manufacturing specifications and is RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) compliant, meeting international environmental and safety regulations.