S-91052A114 M12 x 40 mm ISO 8676, DIN 961 High-Strength Metric Class 10.9 Steel Hex Head Screws

Key Features & Benefits at a Glance

• Exceptional Strength: Class 10.9 rating and 150,000 psi tensile strength ensure reliable performance under high-stress conditions, reducing the risk of fastener failure.
• Superior Corrosion Resistance: Zinc yellow-chromate plating provides excellent protection against rust and environmental degradation, extending service life in harsh industrial settings.
• Precision Threading: M12 x 1.5mm fine thread with Class 6h fit offers secure, vibration-resistant connections, minimizing loosening in dynamic applications.
• High Durability: Steel construction with Rockwell C32 hardness delivers consistent performance and resistance to wear, ideal for repetitive assembly and disassembly.
• Efficient Installation: External hex head design allows for quick, tool-friendly tightening with standard wrenches, speeding up assembly processes.
• Full Thread Engagement: Fully threaded 40mm length ensures maximum grip and load distribution across the entire fastener, enhancing joint integrity.
• Global Compliance: Meets ISO 8676 and DIN 961 specifications, guaranteeing interchangeability and reliability in international engineering projects.

Professional Applications & Engineering Value

This M12 hex head screw is engineered to address critical challenges in heavy-duty industrial applications, such as machinery assembly, structural frameworks, and automotive components. The Class 10.9 steel material and fine metric threading (1.5mm pitch) provide high clamping force and fatigue resistance, preventing joint failure under vibration and dynamic loads. The zinc yellow-chromate finish combats corrosion in humid or chemically aggressive environments, reducing maintenance costs and downtime. With a fully threaded design and precise external hex drive, it ensures easy installation and consistent performance in automated or manual processes, making it a reliable choice for engineers prioritizing safety and longevity.

Specification Summary & Compliance

This fastener adheres to ISO 8676 and DIN 961 standards, ensuring dimensional accuracy with Class 6h thread fit for precise engagement. The metric M12 x 1.5mm fine thread and right-hand direction comply with international threading norms, while the zinc yellow-chromate plating meets common industry requirements for corrosion protection. It is manufactured from high-strength steel and conforms to RoHS and REACH regulations for environmental safety, supporting use in global supply chains without compliance concerns.