S-91239A240 M5 x 40 mm ISO 7380 Steel Button Head Hex-Drive Screws
Steel Button Head Hex-Drive 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
- Exceptional tensile strength with a 140,000 psi rating ensures reliable performance in high-stress industrial applications.
- Superior corrosion resistance from the black-oxide finish on alloy steel, extending service life in harsh environments.
- High hardness of Rockwell C32 provides excellent wear resistance and durability under repeated use.
- Fully threaded M5 coarse thread design allows for faster installation and secure fastening in various materials.
- Hex button head with standard rounded profile offers a low-profile, aesthetically pleasing finish and easy drive engagement with standard tools.
- Compliance with ISO 7380 standards guarantees dimensional accuracy and interchangeability for global engineering projects.
- Environmental regulation adherence including RoHS 3 and REACH ensures safe, sustainable use in regulated industries.
Professional Applications & Engineering Value
This M5 hex button head screw is engineered from black-oxide alloy steel to address common industrial challenges such as corrosion, vibration loosening, and high-load demands. The Class 10.9 strength grade and fully threaded coarse metric thread provide robust clamping force and resistance to shear, making it ideal for machinery, automotive assemblies, and structural frameworks. Its low-profile rounded head minimizes protrusion in compact spaces, while the hex drive ensures efficient installation with standard wrenches. By meeting ISO 7380 specifications, it delivers consistent performance in automated production lines and maintenance operations, reducing downtime and enhancing assembly reliability.
Specification Summary & Compliance
This fastener features an M5 x 0.8 mm coarse thread with a Class 6g thread fit for precise engagement, and a length of 40 mm. It conforms to ISO 7380 for dimensional accuracy and is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring no restricted substances are used. The manufacturing process adheres to strict quality controls for consistent tensile strength and hardness, supporting use in demanding engineering applications.
