S-91310A720 M12 x 40 mm ISO 4014, DIN 931 High-Strength Metric Class 10.9 Steel Hex Head Screws
High-Strength Metric Class 10.9 Steel Hex Head 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 load-bearing capacity with Class 10.9 steel construction, ensuring reliable performance under high-stress conditions
- Enhanced durability and wear resistance thanks to Rockwell C32 hardness, extending service life in demanding environments
- Precision threading with Class 6g fit provides consistent engagement and reduces the risk of cross-threading during installation
- External hex drive design allows for easy installation and removal with standard tools, improving assembly efficiency
- Partially threaded shank with 30mm minimum thread length offers optimal grip and clamping force for varied material thicknesses
- Compliance with ISO 4014 standards guarantees dimensional accuracy and interchangeability in global industrial applications
- RoHS 3 and REACH compliant for environmentally responsible sourcing and use in regulated industries
Professional Applications & Engineering Value
This M12 hex head screw is engineered to address critical challenges in heavy machinery, construction, and structural assemblies where vibration resistance and tensile strength are paramount. The Class 10.9 steel material, combined with a coarse thread pitch of 1.75mm, ensures secure fastening in dynamic load conditions, reducing the risk of loosening over time. The partially threaded design concentrates clamping force where needed, preventing joint failure in applications with varying material densities. With an external hex drive and compliance with ISO 4014, it streamlines maintenance and replacement in industrial settings, offering reliable performance in automotive frames, equipment mounts, and infrastructure projects.
Specification Summary & Compliance
This screw adheres to ISO 4014 (DIN 931) specifications, featuring a Class 6g thread fit for precise dimensional tolerance. It meets RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulatory requirements, ensuring safe use in industrial and construction applications. The metric coarse threading (M12 x 1.75mm) and 40mm length provide consistent performance across standardized assemblies.
