S-91280A321 M6 x 8 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 durability and reliability with Class 8.8 strength grade, ensuring consistent performance under high-stress conditions.
- Superior corrosion resistance thanks to zinc plating, extending service life in harsh industrial environments.
- Easy installation and removal with external hex drive and coarse 1 mm pitch, reducing assembly time and labor costs.
- Precise thread fit (Class 6h) for secure fastening and vibration resistance, minimizing loosening in dynamic applications.
- Full threading along the 8 mm length provides maximum grip and uniform load distribution across joined components.
- High tensile strength of 110,000 psi and Rockwell C21 hardness, offering robust mechanical integrity for heavy-duty use.
- Compliance with international standards including ISO 4017, DIN 933, and SAE J1199, ensuring quality and interchangeability.
Professional Applications & Engineering Value
Engineered for demanding industrial settings, these M6 hex head screws deliver optimal performance in machinery, automotive assemblies, and structural frameworks. The Class 8.8 steel construction and fully threaded design ensure high clamp load retention, addressing common issues like joint failure and vibration-induced slack. With a coarse pitch metric thread and external hex drive, they enable quick, tool-friendly installation, reducing downtime in production lines. The zinc plated finish combats moisture and chemical exposure, making them ideal for outdoor or corrosive environments. By meeting rigorous ISO 4017 specifications, these fasteners provide reliable engineering solutions that enhance assembly longevity and safety.
Specification Summary & Compliance
This screw adheres to precise dimensional tolerances, including M6 x 1 mm thread size with Class 6h thread fit per ISO standards. It conforms to manufacturing specifications such as ISO 4017, DIN 933, and SAE J1199, ensuring consistent quality. Regulatory compliance includes RoHS 3 (2015/863/EU) and REACH (EC 1907/2006), confirming the absence of hazardous substances for safe industrial use.
