S-90910A912 M1.8 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 and passivated finish, ensuring long-term reliability in harsh environments.
- Enhanced torque transmission and tamper resistance from the T5 Torx drive, reducing tool slippage and assembly damage.
- High tensile strength of 100,000 psi and Rockwell B96 hardness for dependable load-bearing in demanding applications.
- Precise thread engagement with Class 4g6g fit and coarse 0.35mm pitch, enabling quick, secure fastening in metric assemblies.
- Low-profile rounded button head design minimizes protrusion, providing a smooth finish and reducing snag risks.
- Full threading along the 5mm length ensures maximum grip and uniform stress distribution across joined components.
- Compliance with ASME B18.3.4M, RoHS 3, and REACH guarantees adherence to industrial safety and environmental standards.
Professional Applications & Engineering Value
Engineered for precision-critical industries, these M1.8 metric screws with a rounded head and Torx T5 drive address common challenges in 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 humid or corrosive settings. The fully threaded design and coarse pitch facilitate rapid installation and high clamp force, reducing assembly time while maintaining Class 4g6g thread fit accuracy. Ideal for applications requiring minimal head protrusion and reliable fastening under vibration, these screws enhance product durability and performance in industrial screw assemblies.
Specification Summary & Compliance
This product features a metric M1.8 x 0.35mm thread with Class 4g6g tolerance and a length of 5mm, manufactured to ASME B18.3.4M standards. It complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental safety and material restrictions are met for global industrial use.
