S-91180A733 M12 x 75 mm ISO 8765, DIN 960 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
- Superior corrosion resistance with zinc plating that extends service life in harsh industrial environments
- Exceptional mechanical strength from Class 8.8 steel construction, supporting loads up to 110,000 psi tensile strength
- Precise thread engagement with Class 6h fit and extra fine 1.25mm pitch for secure, vibration-resistant connections
- Optimized load distribution through partially threaded design with 30mm minimum thread length
- Reliable installation torque enabled by external hex drive and 19mm head width for easy wrench access
- Global compliance assurance meeting ISO 8765 standards and environmental regulations including RoHS 3 & REACH
- Consistent performance backed by Rockwell C21 hardness rating for dimensional stability under stress
Professional Applications & Engineering Value
This M12 hex head screw delivers critical engineering solutions where vibration resistance and precise clamping force are paramount. The extra fine 1.25mm pitch provides superior thread engagement in soft materials and thin-walled assemblies, while the Class 8.8 steel construction maintains structural integrity under dynamic loads. The partially threaded design concentrates stress away from the shank, preventing shear failure in heavy machinery, automotive components, and structural steel connections. Zinc plating offers sacrificial protection against corrosion in outdoor or chemically aggressive environments, making these metric hex bolts ideal for manufacturing equipment, infrastructure projects, and transportation systems requiring reliable, long-term fastening solutions.
Specification Summary & Compliance
Manufactured to ISO 8765 specifications with Class 6h thread fit tolerance for precision engagement. The metric thread system features M12 x 1.25mm extra fine pitch with right-hand threading and 30mm minimum thread length. Full compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring safe use across international markets. Mechanical properties include Class 8.8 strength rating, 110,000 psi tensile strength, and Rockwell C21 hardness for consistent performance in industrial applications.
