S-91280A313 M12 x 120 mm ISO 4014, DIN 931 Medium-Strength Metric Class 8.8 Steel Hex Head Screws
Medium-Strength Metric Class 8.8 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 8.8 strength grade and 110,000 psi tensile strength for reliable performance in demanding applications
- Enhanced durability and wear resistance thanks to Rockwell C21 hardness steel construction
- Secure and easy installation with external hex drive and 19mm head width for optimal torque transmission
- Versatile partial threading providing 30mm minimum thread length for flexible clamping and adjustment
- Precise metric coarse threading (M12 x 1.75mm) with Class 6g fit ensuring consistent engagement and vibration resistance
- Full regulatory compliance meeting ISO 4014 standards and RoHS 3/REACH environmental requirements
- Robust 120mm length designed for heavy-duty industrial assemblies requiring extended fastening solutions
Professional Applications & Engineering Value
This M12 hex head screw delivers exceptional engineering value through its Class 8.8 steel construction and ISO 4014 compliance. The combination of 110,000 psi tensile strength and Rockwell C21 hardness ensures reliable performance in structural applications where vibration resistance and long-term integrity are critical. The partially threaded design allows for precise clamping force distribution, making it ideal for machinery assemblies, structural steel connections, and heavy equipment manufacturing. The external hex drive and coarse metric threading provide quick installation and superior resistance to loosening under dynamic loads. As a DIN 931 equivalent fastener, it offers interchangeable compatibility across international engineering specifications while maintaining RoHS 3 and REACH compliance for global manufacturing requirements.
Specification Summary & Compliance
This metric hex head screw features precise Class 6g thread fit tolerance with M12 x 1.75mm coarse threading and right-hand thread direction. Manufactured to ISO 4014 specifications (equivalent to DIN 931) with 30mm minimum thread length and 120mm overall length. Fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring safe use across industrial applications.
