S-90910A921 M2 x 5 mm ASME B18.3.4M Stainless Steel Button Head Torx Screws
Stainless Steel Button Head Torx 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 and passivated finish, ideal for harsh industrial environments.
- Enhanced torque transmission and reduced cam-out thanks to the Torx T6 drive, ensuring secure and efficient installation.
- High mechanical strength with 100,000 psi tensile strength and Rockwell B96 hardness for reliable, long-lasting fastening under stress.
- Precise thread engagement with Class 4g6g fit and coarse 0.4 mm pitch, offering quick assembly and vibration resistance.
- Low-profile, rounded button head design minimizes protrusion, providing a sleek finish and reducing snagging in tight spaces.
- Full threading along the 5 mm length ensures maximum grip and uniform load distribution across joined materials.
- Compliance with major standards including ASME B18.3.4M, RoHS 3, and REACH, guaranteeing safety and regulatory adherence.
Professional Applications & Engineering Value
This M2 x 0.4 mm metric screw is engineered to address critical challenges in precision assemblies, such as electronics, medical devices, and compact machinery. The 18-8 stainless steel material, combined with a passivated finish, resists oxidation and chemical exposure, extending service life in demanding conditions. The Torx button head and coarse thread design facilitate rapid, error-free installation with high torque efficiency, reducing assembly time and tool wear. Ideal for applications requiring high tensile strength and minimal head profile, these screws ensure secure fastening in space-constrained environments, enhancing product reliability and maintenance efficiency.
Specification Summary & Compliance
This screw adheres to precise dimensional and threading standards, including Class 4g6g thread fit and metric M2 x 0.4 mm coarse thread specifications per ASME B18.3.4M. It is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental safety and material integrity for global industrial use.
