S-92981A950 M1.6 ASTM A108 Shoulder Screws
Shoulder Screws
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Basic Information
Head Parameters
Dimensions
Thread Parameters
Tip & Drive Parameters
Material & Strength
Temperature & Environment
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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 with Rockwell C32 hardness, ensuring reliable performance under mechanical stress.
- Precise Class 5g6g thread fit for secure, vibration-resistant fastening in metric assemblies.
- 20mm shoulder length with tight tolerance control, providing accurate alignment and spacing in precision applications.
- Hex socket drive design allows for easy installation with standard tools, reducing assembly time.
- Coarse 0.35mm pitch thread enables quick engagement and disassembly, improving maintenance efficiency.
- Compliance with ASTM A108, RoHS 3, and REACH standards, ensuring safety and environmental responsibility.
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 machinery, such as misalignment and corrosion. The 20mm shoulder length with controlled tolerances ensures stable positioning in assemblies, reducing wear and improving operational accuracy. Its Class 5g6g thread fit and coarse pitch provide secure fastening in metric thread systems, ideal for applications in electronics, automotive, and industrial equipment where vibration resistance and durability are critical. By combining high Rockwell C32 hardness with a socket head design, it supports efficient maintenance and long-term reliability in demanding environments.
Specification Summary & Compliance
This shoulder screw features a metric thread with M1.6 size, 0.35mm pitch, and Class 5g6g thread fit for precise dimensional accuracy. The shoulder diameter tolerance is -0.072 to -0.01 mm, and shoulder length tolerance is 0 to 0.25 mm, ensuring consistent performance. It complies with ASTM A108 manufacturing standards and is certified RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) compliant, meeting environmental and safety regulations.
