S-92981A943 M1.6 ASTM A108 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 mechanical stress and repeated use.
• Precision Class 5g6g thread fit guarantees smooth assembly and secure fastening in critical applications.
• Rockwell C32 hardness provides excellent wear resistance and durability for long-term reliability.
• 6mm shoulder length with controlled tolerances enables accurate alignment and spacing in assemblies.
• 1.5mm hex drive socket head allows for easy installation with standard tools, reducing assembly time.
• Compliance with RoHS 3 and REACH ensures environmental safety and regulatory adherence for global markets.

Professional Applications & Engineering Value

This M1.6 shoulder screw is engineered from alloy steel with a black oxide finish to address common challenges in precision assemblies, such as corrosion and misalignment. The coarse 0.35mm pitch and right-hand thread facilitate quick installation in tight spaces, reducing labor costs. With a 2mm shoulder diameter and 6mm shoulder length, it provides stable shaft support in machinery, electronics, and automotive components, minimizing vibration and wear. The socket head design with a 1.5mm hex drive ensures tool accessibility, making it ideal for high-volume production lines where efficiency and reliability are critical.

Specification Summary & Compliance

This shoulder screw adheres to Class 5g6g thread fit per metric standards, with shoulder diameter tolerance of -0.072 to -0.01 mm and shoulder length tolerance of 0 to 0.25 mm for precise dimensional control. It meets ASTM A108 specifications for material quality and is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring safety and environmental responsibility.