S-91280A712 M12 x 20 mm ISO 4017, DIN 933, ISO 898 Medium-Strength Metric Class 8.8 Steel Hex Head Screws
Medium-Strength Metric Class 8.8 Steel Hex Head Screws
Image may differ from product. See technical specification for details.
Basic Information
Head Parameters
Dimensions
Thread Parameters
Tip & Drive Parameters
Material & Strength
Temperature & Environment
- Fast delivery
- Enjoy discounts on bulk purchases
- Secure Payment
- Fast Global Shipping
Key Features & Benefits at a Glance
- Enhanced Durability: Zinc plating provides superior corrosion resistance, extending service life in harsh industrial environments.
- High Tensile Strength: Class 8.8 rating with 110,000 PSI tensile strength ensures reliable performance under heavy loads and vibration.
- Secure Fastening: Coarse 1.75mm thread pitch offers excellent grip and resistance to loosening in various materials.
- Easy Installation: External hex head design allows for straightforward tightening with standard wrenches, reducing assembly time.
- Precision Fit: Class 6h thread fit guarantees consistent, accurate engagement for secure connections.
- Full Thread Engagement: Fully threaded design maximizes holding power across the entire 20mm length.
- Material Hardness: Rockwell C21 hardness provides excellent wear resistance and structural integrity.
Professional Applications & Engineering Value
This M12 hex head screw is engineered to address critical industrial fastening challenges, such as structural integrity and long-term reliability. Made from high-strength Class 8.8 steel and featuring a zinc-plated finish, it combats corrosion in demanding settings like machinery assembly, construction, and automotive applications. The coarse thread metric design with a 1.75mm pitch ensures quick installation and robust holding power, reducing the risk of stripping in softer materials. Its fully threaded configuration and external hex drive simplify maintenance and provide consistent clamping force, making it ideal for heavy-duty applications where vibration resistance and durability are paramount.
Specification Summary & Compliance
This screw adheres to precise dimensional standards, including Class 6h thread fit for accuracy and compliance with ISO 4017 and DIN 933 specifications. It meets ISO 898 for mechanical properties and is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental safety and suitability for global industrial use.
