S-91280A791 M14 x 75 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
- Exceptional tensile strength of 110,000 psi ensures reliable performance in demanding applications, reducing the risk of fastener failure.
- Superior corrosion resistance from zinc plating extends service life and maintains integrity in harsh industrial environments.
- High-strength Class 8.8 steel construction with Rockwell C21 hardness provides excellent durability and load-bearing capacity.
- Precise metric threading (M14 x 2 mm coarse) with Class 6h fit ensures easy installation and secure, vibration-resistant connections.
- Partially threaded design allows for effective clamping where full threading isn't required, optimizing fastening efficiency.
- External hex drive with standard head dimensions enables quick installation and removal using common tools, saving time on assembly lines.
- Compliance with international standards including ISO 4014 and DIN 931 guarantees interchangeability and quality assurance for global projects.
Professional Applications & Engineering Value
Engineered for heavy-duty industrial applications, these M14 hex head screws solve critical fastening challenges in construction, machinery assembly, and automotive sectors. The Class 8.8 steel material provides the necessary strength to withstand high stress and dynamic loads, while the zinc plating offers essential protection against corrosion in outdoor or humid conditions. The coarse thread pitch and partial threading design prevent loosening under vibration and allow for precise tension control. These metric hex bolts are ideal for structural connections where reliability is paramount, reducing maintenance needs and enhancing operational safety in demanding environments.
Specification Summary & Compliance
This hex head screw features precise M14 x 2 mm coarse threads with Class 6h thread fit per ISO metric standards, ensuring dimensional accuracy. It meets ISO 4014 and DIN 931 manufacturing specifications for hex head bolts, and is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, confirming its suitability for regulated industries and sustainable procurement practices.
