S-96755A430 M8 x 20 mm ISO 4017, DIN 933 Medium-Strength Metric Class 8.8 Steel Thread-Locking Hex Head Screws
Medium-Strength Metric Class 8.8 Steel Thread-Locking 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
- Vibration-resistant locking with permanent nylon patch that maintains secure fastening from -55° to 250°F (-48° to 121°C)
- Exceptional load-bearing capacity with Class 8.8 strength rating and 110,000 PSI tensile strength for heavy-duty applications
- Superior corrosion protection through zinc plating that extends service life in demanding industrial environments
- Reliable thread engagement with Class 6h fit and coarse 1.25mm pitch for easier installation and reduced cross-threading risk
- Optimized torque transmission through external hex drive design with 13mm head for secure tool engagement
- Full-threaded design providing maximum grip length and uniform stress distribution along the entire 20mm length
- Consistent performance backed by Rockwell C22 hardness for dimensional stability under load
Professional Applications & Engineering Value
These M8 hex head screws deliver critical vibration resistance in industrial machinery, automotive assemblies, and structural frameworks where permanent locking is essential. The nylon patch thread locker eliminates the need for separate locking washers or chemical adhesives, streamlining assembly while maintaining integrity across extreme temperature ranges (-55° to 250°F). Manufactured from zinc-plated steel with Class 8.8 strength and coarse metric threading, these fasteners withstand high tensile loads while the external hex drive ensures reliable torque application in confined spaces. The combination of fully threaded design and precise Class 6h thread fit guarantees consistent clamping force in repetitive manufacturing applications.
Specification Summary & Compliance
This M8 x 1.25mm x 20mm hex head screw features Class 6h thread fit with coarse thread spacing and full threading along its length. Manufactured to ISO 4017/DIN 933 standards with Class 8.8 strength rating (110,000 PSI tensile strength, Rockwell C22 hardness). Compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations for industrial use.
