S-90318A412 M2 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 18-8 stainless steel construction, ideal for harsh industrial environments
- Exceptional mechanical strength offering 95,000 psi tensile strength and Rockwell B97 hardness for reliable, long-term performance
- Precise assembly alignment ensured by the accurate 3mm shoulder diameter with tight tolerances for reduced component wear
- Easy installation in confined spaces with the ultra-low socket head and 1.5mm hex drive for efficient tool engagement
- Consistent thread engagement provided by Class 6g thread fit and coarse 0.4mm pitch, minimizing cross-threading risks
- Enhanced durability from passivated finish, which improves surface resistance to corrosion and oxidation
- Compliance with global standards including RoHS 3 and REACH, ensuring safe use in regulated industries
Professional Applications & Engineering Value
This precision shoulder screw is engineered to address critical alignment and stability challenges in industrial applications. The 18-8 stainless steel material, combined with a passivated finish, delivers excellent corrosion resistance, making it suitable for machinery, electronics, and automotive assemblies exposed to moisture or chemicals. The ultra-low socket head and hex drive allow for secure fastening in tight spaces, while the Class 6g thread fit and coarse thread pitch ensure quick, reliable installation without compromising strength. With a precise shoulder fit and exact tolerances, it minimizes misalignment and vibration, extending the lifespan of precision components in demanding environments.
Specification Summary & Compliance
This metric shoulder screw features a thread size of M2 with a 0.4mm coarse pitch and Class 6g thread fit per ISO standards for consistent performance. The shoulder diameter is 3mm with a tolerance of -0.03 to 0 mm, and shoulder length is 3mm with a tolerance of 0 to 0.06 mm, ensuring precise fit in assemblies. It complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, supporting use in environmentally conscious and regulated industries.
