S-94036A831 M12 x 30 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 protection with zinc yellow-chromate plating, extending service life in harsh industrial environments
• Superior load-bearing capability from Class 8.8 strength grade and 110,000 psi tensile strength for heavy-duty applications
• Secure fastening with integrated flange eliminating the need for separate washers and distributing clamp load effectively
• Optimized thread engagement with Class 6g thread fit and coarse 1.75mm pitch ensuring reliable assembly in various materials
• Robust mechanical properties featuring Rockwell C22 hardness for excellent wear resistance and durability
• Industry-standard compliance meeting DIN 6921 and ISO 898-1 specifications for guaranteed interchangeability and performance
• Efficient installation through external hex drive design providing high torque transmission and straightforward assembly

Professional Applications & Engineering Value

This M12 hex head screw delivers critical engineering solutions where vibration resistance and structural integrity are paramount. The zinc yellow-chromate plated steel construction provides a robust barrier against oxidation and chemical exposure, making it ideal for outdoor equipment, machinery frames, and automotive assemblies. The partially threaded design with coarse thread spacing ensures rapid installation while maintaining precise clamp force control. The integrated flanged head eliminates washer requirements, reducing component count in industrial fastening systems. With its Class 8.8 strength grade and standardized metric thread profile, this fastener consistently performs in high-stress applications including structural steel connections, heavy machinery, and conveyor systems where reliability cannot be compromised.

Specification Summary & Compliance

Manufactured to precise Class 6g thread fit tolerances with M12x1.75 mm coarse thread dimensions and 24mm minimum thread length. Complies with ISO 898-1 mechanical properties and DIN 6921 dimensional standards for flange head hex screws. The zinc yellow-chromate plating meets RoHS and REACH environmental compliance requirements while providing corrosion protection. Rockwell C22 hardness and 110,000 psi tensile strength verify consistent performance under ASME-recognized load conditions.