S-90379A109 M8 x 50 mm JIS B 1180 JIS Medium-Strength Steel Hex Head Screws
JIS Medium-Strength 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 protection with zinc yellow-chromate plating that extends service life in demanding environments
- High tensile strength rating of 110,000 psi ensures reliable performance under heavy loads and vibration
- Precise Class 6g thread fit provides smooth installation and secure fastening in metric applications
- External hex drive design allows for high torque application with standard tools, reducing installation time
- Full threading along 50mm length offers maximum grip range and adjustment flexibility
- Rockwell C21 hardness maintains structural integrity and prevents deformation under stress
- JIS B 1180 compliance guarantees consistent quality and interchangeability in international projects
Professional Applications & Engineering Value
These M8 hex head screws deliver exceptional engineering value across industrial applications where corrosion resistance and high strength are critical. The Class 8.8 strength rating combined with zinc yellow-chromate plating creates a durable steel fastener that withstands harsh conditions while maintaining Rockwell C21 hardness. The coarse thread with 1.25mm pitch ensures rapid installation in machinery, structural steel connections, and automotive assemblies, while the external hex drive accommodates high-torque applications. Fully compatible with JIS B 1180 specifications, these fully threaded metric hex bolts provide reliable performance in heavy-duty equipment, construction projects, and manufacturing systems requiring precise right-hand thread fastening solutions.
Specification Summary & Compliance
This M8 hex head screw features metric coarse threading with 1.25mm pitch and Class 6g thread fit tolerance for precision engagement. Manufactured from high-strength steel with zinc yellow-chromate plating finish, the fastener meets JIS B 1180 specifications and delivers Class 8.8 strength rating with 110,000 psi tensile strength. The 50mm length and fully threaded design ensure consistent performance across applications requiring external hex drive compatibility and right-hand thread direction.
