S-90991A124 M4 x 16 mm ISO 7380 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 for long-lasting performance in harsh environments
- Enhanced drive security and torque transmission thanks to the Torx T20 drive that minimizes cam-out and tool slippage
- Reliable tensile strength of 100,000 PSI ensures dependable fastening under high-stress conditions
- Precision Class 6g thread fit guarantees consistent engagement and vibration resistance in assemblies
- Low-profile rounded button head design provides a smooth, finished appearance while reducing snagging risks
- Full threading along the 16mm length offers maximum grip and uniform clamping force across the entire fastener
- Compliance with international standards including ISO 7380 ensures interchangeability and quality assurance
Professional Applications & Engineering Value
These M4 metric screws with Torx T20 drive are engineered to address common industrial challenges such as fastener failure due to corrosion, stripping, or vibration loosening. The 18-8 stainless steel construction, enhanced by a passivated finish, provides exceptional resistance to oxidation and chemical exposure, making them ideal for electronics enclosures, machinery panels, and automotive assemblies. The coarse thread (0.7mm pitch) and Class 6g tolerance ensure quick installation and secure fit in materials like aluminum or plastic, reducing assembly time while maintaining high tensile strength (100,000 PSI). This combination of material durability and drive efficiency minimizes maintenance needs and extends service life in demanding applications.
Specification Summary & Compliance
This fastener adheres to ISO 7380 specifications for dimensional accuracy, including a M4 x 0.7mm coarse thread with Class 6g fit and 16mm length. It is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring it is free from hazardous substances and suitable for global supply chains. The manufacturing process meets standardized metrics for thread consistency and head geometry, providing reliable performance in precision engineering contexts.
