S-91280A727 M12 x 55 mm ISO 4017, DIN 933 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 tensile strength of 110,000 psi ensures reliable performance in demanding industrial applications, reducing the risk of fastener failure.
- Enhanced corrosion resistance from zinc plating extends service life in harsh environments, minimizing maintenance and replacement costs.
- High-strength Class 8.8 steel construction with Rockwell C21 hardness provides excellent durability and resistance to wear and deformation.
- Fully threaded right-hand coarse pitch design allows for quick installation and secure fastening in a wide range of materials.
- Precision external hex drive and hex head enable easy tightening with standard tools, improving assembly efficiency.
- Compliance with ISO 4017 standards guarantees dimensional accuracy and interchangeability, ensuring consistent quality across batches.
- RoHS 3 and REACH compliance ensures environmental safety and regulatory adherence for global supply chains.
Professional Applications & Engineering Value
This M12 hex head screw is engineered to address critical fastening challenges in heavy-duty industrial settings. Made from Class 8.8 steel with a zinc-plated finish, it combats corrosion and mechanical stress in machinery, construction, and automotive assemblies. The fully threaded metric coarse pitch (M12 x 1.75mm) and external hex drive facilitate rapid, high-torque installation, reducing assembly time while maintaining 110,000 psi tensile strength. Ideal for applications requiring robust, ISO 4017-compliant fasteners, it ensures long-term reliability in structural frameworks, equipment mounts, and other high-load scenarios where precision and durability are paramount.
Specification Summary & Compliance
This screw features a metric M12 x 1.75mm coarse thread with Class 6h thread fit for precise engagement, and dimensions including a 55mm length, 19mm head width, and 7.5mm head height. It meets ISO 4017 (equivalent to DIN 933) for manufacturing consistency and is compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental and safety standards are upheld.
