S-91280A850 M16 x 80 mm ISO 4014, DIN 931, SAE J1199, 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 load-bearing capacity with Class 8.8 strength grade and 110,000 psi tensile strength for reliable performance in high-stress applications
- Enhanced corrosion resistance through zinc plating, extending service life in harsh industrial environments
- Precise thread engagement with Class 6h fit and M16x2 mm coarse thread ensuring secure fastening and vibration resistance
- Optimized torque transmission via external hex drive and 24 mm head width for efficient installation with standard tools
- Versatile partial threading allowing combined clamping and alignment functions in structural assemblies
- Consistent hardness profile at Rockwell C21 maintaining mechanical properties through repeated use cycles
- Global compliance assurance meeting ISO 4014, DIN 931, and SAE J1199 standards for international project compatibility
Professional Applications & Engineering Value
This M16 hex head screw delivers critical engineering solutions where structural integrity matters most. The Class 8.8 steel construction provides dependable strength for heavy machinery frames, construction steelwork, and industrial equipment assembly. Its partially threaded design creates distinct shank and thread zones - the unthreaded portion maintains alignment in bolted joints while the coarse metric thread ensures rapid installation. The zinc plated finish actively resists environmental corrosion in manufacturing facilities and outdoor applications. With external hex drive compatibility, installers achieve precise torque control using standard wrenches, reducing assembly time in high-volume production environments. These industrial fasteners meet rigorous international specifications, making them ideal for global supply chains and standardized engineering projects.
Specification Summary & Compliance
Manufactured to ISO 4014/DIN 931 dimensional standards with Class 6h thread fit tolerance. The 80 mm length includes 38 mm minimum threaded portion with M16x2 mm coarse pitch right-hand threading. Compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations. Meets mechanical property specifications per ISO 898 and SAE J1199 standards for guaranteed performance.
