S-91280A542 M8 x 40 mm ISO 4017, DIN 933, 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
- 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, even in harsh industrial environments.
- High-strength Class 8.8 steel construction provides excellent durability and load-bearing capacity for heavy-duty fastening.
- Fully threaded coarse pitch design allows for faster installation and secure holding power in a wide range of materials.
- Precision external hex drive and head ensures easy installation with standard tools, improving assembly efficiency.
- Compliance with ISO 4017, DIN 933, and SAE J1199 standards guarantees consistent quality and interchangeability for global projects.
- RoHS 3 and REACH compliance ensures environmental safety and regulatory adherence for sustainable operations.
Professional Applications & Engineering Value
This M8 hex head screw is engineered to address critical industrial fastening challenges, combining Class 8.8 steel strength with a zinc-plated finish for enhanced durability and corrosion resistance. Its fully threaded coarse thread design ensures rapid assembly and robust grip in metals, machinery, and structural components, minimizing loosening under vibration. With a Rockwell C21 hardness and precise external hex drive, it withstands high-stress environments in automotive, construction, and manufacturing sectors, providing reliable performance where safety and longevity are paramount. Ideal for applications requiring metric coarse thread fasteners that meet rigorous international standards.
Specification Summary & Compliance
The screw features a Class 6h thread fit for precise dimensional accuracy, adhering to ISO 4017 and DIN 933 specifications for consistent performance. It complies with SAE J1199 manufacturing standards and is verified to meet RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental and safety requirements are fully satisfied.
