S-90180A619 M8 x 20 mm ISO 4017, DIN 933 High-Strength Metric Class 10.9 Steel Hex Head Screws
High-Strength Metric Class 10.9 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 tensile strength with 150,000 psi rating ensures reliable performance in high-stress applications
- Superior corrosion resistance through blue-dyed zinc plating protects against environmental degradation
- High hardness rating of Rockwell C32 provides excellent wear resistance and durability
- Precision Class 6g thread fit guarantees consistent engagement and secure fastening
- Full threading design offers maximum grip length and uniform load distribution
- External hex drive enables easy installation with standard tools and high torque capability
- Coarse 1.25mm pitch facilitates quick assembly and reduces cross-threading risks
Professional Applications & Engineering Value
These Class 10.9 hex head screws deliver exceptional engineering value for demanding industrial applications where failure is not an option. The M8 metric coarse thread with 1.25mm pitch provides superior resistance to vibration loosening, making them ideal for heavy machinery, automotive assemblies, and structural frameworks. The blue-dyed zinc-plated steel construction offers both visual identification and enhanced corrosion protection in challenging environments. With fully threaded design and external hex drive, these fasteners ensure maximum clamping force distribution and straightforward installation using common tools. The combination of high tensile strength and Rockwell C32 hardness addresses critical concerns about joint integrity and long-term performance in mechanical systems subjected to dynamic loads and harsh operating conditions.
Specification Summary & Compliance
This M8 x 1.25mm hex head screw features precise Class 6g thread fit tolerance and complies with ISO 4017 DIN 933 manufacturing specifications. The fastener meets RoHS 3 (2015/863/EU) compliance for restricted substances and REACH (EC 1907/2006) regulations for chemical safety. Manufactured to Class 10.9 strength grade standards, this 20mm length screw delivers consistent performance across industrial applications requiring metric coarse threading and high-strength fastening solutions.
