S-91280A989 M18 x 30 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
- Exceptional corrosion resistance with zinc plating, extending service life in demanding industrial environments
- High tensile strength of 110,000 psi from Class 8.8 steel construction, ensuring reliable performance under heavy loads
- Superior hardness (Rockwell C21) provides excellent wear resistance and prevents thread deformation during installation
- Precision Class 6h thread fit guarantees smooth assembly and secure fastening in metric applications
- Full threading along the 30mm length offers maximum grip and load distribution across the entire fastener
- External hex drive design allows for high-torque installation using standard tools, improving assembly efficiency
- Compliance with ISO 4017, RoHS 3, and REACH standards ensures international quality and environmental safety for global projects
Professional Applications & Engineering Value
These M18 hex head screws with 2.5mm coarse thread pitch are engineered to solve critical fastening challenges in heavy machinery, structural steel assemblies, and industrial equipment. The Class 8.8 steel construction delivers robust strength that prevents failure under vibration and dynamic loads, while the zinc plating provides essential corrosion protection in humid or outdoor environments. The fully threaded design ensures maximum engagement in tapped holes or nuts, distributing stress evenly to prevent loosening. With ISO 4017 compliance and precise Class 6h thread fit, these screws offer reliable performance in automotive, construction, and manufacturing applications where dimensional accuracy and durability are paramount.
Specification Summary & Compliance
This M18 x 2.5mm hex head screw features Class 6h thread tolerance for precision fit and fully threaded design per ISO 4017 (DIN 933) specifications. Manufactured from Class 8.8 steel with Rockwell C21 hardness and 110,000 psi tensile strength, it meets rigorous industrial standards. Compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental safety and material restrictions adherence.
