S-91280A318 M16 x 90 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 installation torque control through 24mm external hex head design providing secure grip and reduced tool slippage
- Optimized thread engagement with M16 coarse 2mm pitch threads ensuring faster assembly and reduced cross-threading risks
- Exceptional material durability featuring steel construction with Rockwell C21 hardness for long-term corrosion resistance and wear protection
- Precision threading compliance with Class 6g thread fit maintaining consistent fastening performance across multiple installations
- Versatile partial threading design allowing both clamping and alignment functions in structural and machinery applications
- Global regulatory compliance meeting ISO 4014 standards with RoHS 3 and REACH environmental directives for international projects
Professional Applications & Engineering Value
Engineered for industrial machinery assembly and structural steel connections, this M16 hex head screw delivers critical performance where vibration resistance and high tensile strength are paramount. The steel material with Rockwell C21 hardness ensures dimensional stability under dynamic loads, while the coarse 2mm pitch metric thread enables rapid installation in time-sensitive production environments. The partially threaded design provides unthreaded shank sections for precise shear load distribution, making it ideal for heavy equipment manufacturing and construction applications requiring repeated disassembly and reassembly cycles without thread degradation.
Specification Summary & Compliance
This metric hex head screw features precise Class 6g thread fit tolerances with M16 x 2mm coarse pitch threading conforming to ISO 4014 specifications (equivalent to DIN 931). Manufacturing complies with Class 8.8 strength requirements and maintains full compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring suitability for global industrial supply chains and regulated applications.
