S-91239A631 M16 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 load-bearing capacity with Class 10.9 strength rating and 140,000 psi tensile strength for reliable performance in demanding applications
- Superior corrosion resistance through black-oxide coating that protects against rust and extends service life in harsh environments
- Optimized torque transmission with 10mm hex drive design that prevents stripping and ensures secure installation
- Enhanced thread engagement through M16x2mm coarse pitch threading that provides faster assembly and superior vibration resistance
- Precision manufacturing with Class 6g thread fit ensuring consistent performance and interchangeability across applications
- Versatile rounded head design that offers a low-profile finish while maintaining excellent clamping force distribution
- Full regulatory compliance meeting ISO 7380 standards and environmental regulations including RoHS 3 and REACH
Professional Applications & Engineering Value
This M16 hex screw delivers critical engineering solutions for heavy-duty industrial applications where fastener failure is not an option. The black-oxide alloy steel construction provides exceptional corrosion resistance while maintaining the Class 10.9 strength rating required for structural connections, machinery assembly, and equipment manufacturing. The fully threaded coarse pitch design ensures maximum thread engagement in various materials, reducing the risk of loosening under vibration and dynamic loads. The rounded head profile with 10mm hex drive offers both aesthetic appeal and practical installation advantages, making these metric screws ideal for applications requiring both performance and professional appearance.
Specification Summary & Compliance
This fastener features precision M16x2mm coarse pitch threading with Class 6g thread fit tolerance according to ISO metric standards. The 40mm length and fully threaded design provide consistent performance across the entire fastener. Manufacturing complies with ISO 7380 specifications for dimensional accuracy and mechanical properties. The product is RoHS 3 (2015/863/EU) Compliant and REACH (EC 1907/2006) Compliant, ensuring environmental responsibility and regulatory adherence for global industrial applications.
