S-94036A835 M12 x 35 mm ISO 898-1, DIN 6921 Medium-Strength Metric Class 8.8 Steel Flanged Hex Head Screws

Key Features & Benefits at a Glance

• Enhanced Corrosion Resistance: Zinc yellow-chromate plating provides superior protection against rust and environmental degradation, extending service life in harsh industrial conditions.
• High Tensile Strength: Class 8.8 rating with 110,000 psi tensile strength ensures reliable performance under heavy loads and high-stress applications.
• Secure Flanged Head Design: Integrated 26.6 mm flange distributes clamping force over a wider area, reducing surface pressure and preventing loosening from vibrations.
• Optimized Thread Engagement: Coarse M12x1.75 thread with Class 6g fit offers faster assembly and robust holding power, ideal for general-purpose and structural fastening.
• Durable Material Hardness: Steel construction with Rockwell C22 hardness provides excellent wear resistance and durability for long-term use.
• Versatile Partially Threaded Shank: 30 mm minimum thread length on a 35 mm screw allows for precise clamping control and secure joint integrity.
• Standardized Compliance: Manufactured to DIN 6921 and ISO 898-1 specifications, ensuring interchangeability, quality consistency, and global engineering acceptance.

Professional Applications & Engineering Value

This M12 hex head screw is engineered to address common industrial challenges such as joint failure, corrosion-induced degradation, and assembly inefficiency. The Class 8.8 strength grade and zinc yellow-chromate plating deliver a robust solution for heavy-duty applications in machinery, structural frameworks, and automotive assemblies, where vibration resistance and long-term reliability are critical. The flanged head eliminates the need for separate washers, streamlining installation while providing a larger bearing surface to prevent material damage. With a coarse metric thread (M12x1.75) and partial threading, it ensures quick, secure fastening in steel, aluminum, and other common substrates, reducing assembly time and maintenance costs. Compliant with DIN 6921 and ISO 898-1, it meets rigorous international standards for quality and performance.

Specification Summary & Compliance

This fastener features a metric M12x1.75 coarse thread with Class 6g tolerance for precise fit, a 35 mm length with 30 mm minimum thread length, and an external hex drive for standard tool compatibility. It conforms to DIN 6921 for dimensional integrity and ISO 898-1 for mechanical properties, including tensile strength and hardness. The zinc yellow-chromate plating offers RoHS and REACH compliance for environmental safety, while the Class 8.8 rating aligns with ASME and ISO standards for industrial fastener performance.