S-91280A183 M12 x 85 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
- Exceptional tensile strength with Class 8.8 rating (110,000 PSI) ensures reliable performance in demanding applications
- Superior corrosion resistance through zinc plating extends service life in harsh industrial environments
- Optimized thread design with coarse 1.75mm pitch provides faster installation and reduced cross-threading risk
- Precision external hex drive enables secure tool engagement and high torque application without slippage
- Partially threaded configuration with 30mm minimum thread length offers versatile clamping force distribution
- Rockwell C21 hardness maintains structural integrity under repeated stress and vibration
- Standardized dimensions per ISO 4014/DIN 931 ensure perfect compatibility with existing metric assemblies
Professional Applications & Engineering Value
Engineered for heavy-duty industrial applications, these M12 hex head screws deliver critical performance where vibration resistance and structural integrity are paramount. The Class 8.8 steel construction provides reliable strength for machinery assembly, structural steel connections, and equipment manufacturing. The zinc plated finish effectively combats corrosion in manufacturing facilities and outdoor installations, while the coarse thread pitch (1.75mm) enables quicker installation in production environments. The partially threaded design concentrates clamping force precisely where needed, preventing joint loosening in dynamic load conditions. These metric fasteners are particularly valuable in automotive, construction, and industrial machinery applications requiring high tensile strength and consistent performance.
Specification Summary & Compliance
This hex head screw features precise Class 6h thread fit tolerance for consistent engagement and meets ISO 4014/DIN 931 manufacturing specifications. The fastener maintains dimensional accuracy with 85mm length, 19mm head width, and right-hand threading. Compliance includes RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental safety and material restrictions adherence for global industrial applications.
