S-91280A740 M12 x 110 mm ISO 4014, DIN 931, ISO 898 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 corrosion resistance with zinc plating that protects against rust and extends service life in harsh industrial environments
- High tensile strength performance with Class 8.8 rating (110,000 PSI) ensuring reliable load-bearing capacity for demanding applications
- Precision thread fit with Class 6h tolerance providing secure, vibration-resistant connections in coarse thread assemblies
- Optimized partial threading with minimum 30mm thread length allowing for controlled clamping force and reduced weight
- Enhanced installation efficiency through external hex drive and standard 19mm head width for quick tool engagement and torque application
- Material durability with Rockwell C21 steel hardness maintaining structural integrity under repeated stress and mechanical loads
- Global compliance assurance meeting ISO 4014/DIN 931 manufacturing standards for consistent quality and international project compatibility
Professional Applications & Engineering Value
This M12 hex head screw delivers critical engineering solutions where high tensile strength and corrosion protection are paramount. The Class 8.8 steel construction with zinc plating prevents fastener failure in structural applications, manufacturing equipment, and machinery assembly. Its partially threaded design with coarse metric thread (1.75mm pitch) provides superior resistance to vibrational loosening while maintaining precise Class 6h thread fit. The external hex drive configuration ensures reliable torque transmission during installation, making it ideal for construction, automotive, and heavy equipment applications where industrial fasteners must withstand extreme mechanical stresses without compromising performance or regulatory compliance.
Specification Summary & Compliance
Manufactured to ISO 4014/DIN 931 specifications with Class 6h thread fit tolerance and coarse thread spacing. The fastener meets ISO 898 mechanical property requirements for Class 8.8 strength grade with verified Rockwell C21 hardness and 110,000 PSI tensile strength. Fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring safe use across global industrial markets.
