S-91306A660 M4 x 8 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 of 140,000 psi ensures reliable performance in high-stress industrial applications, reducing the risk of fastener failure.
- Superior corrosion resistance from zinc plating protects against rust and environmental damage, extending service life in harsh conditions.
- High-strength Class 10.9 rating provides excellent load-bearing capacity, ideal for critical assemblies requiring dependable fastening.
- Efficient hex drive design with a 2.5 mm drive size allows for easy installation and high torque transmission, minimizing tool slippage.
- Coarse Class 6g thread fit ensures quick and secure engagement, reducing assembly time and improving productivity.
- Fully threaded construction offers consistent holding power along the entire length, enhancing grip in various materials.
- Compliance with ISO 7380 and environmental standards guarantees consistent quality and safe use in regulated industries.
Professional Applications & Engineering Value
This M4 x 0.7mm Class 10.9 zinc-plated alloy steel rounded head hex screw is engineered to address common industrial challenges, such as vibration loosening and corrosion-induced failures. The high tensile strength and Rockwell C32 hardness make it suitable for heavy-duty applications in machinery, automotive, and construction, where durability is critical. The coarse metric thread and Class 6g fit facilitate rapid installation in tough materials, while the zinc plating provides a protective barrier against moisture and chemicals. Its fully threaded design ensures uniform stress distribution, reducing the risk of strip-out and enhancing long-term reliability in dynamic environments.
Specification Summary & Compliance
This fastener adheres to ISO 7380 standards for dimensional accuracy, featuring an M4 thread size with a 0.7 mm pitch and Class 6g thread fit for precise engagement. It meets RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) compliance, ensuring environmental safety and regulatory approval for industrial use. The 8 mm length and fully threaded right-hand design provide consistent performance, backed by the Class 10.9 strength grade for high-load applications.
