S-90379A113 M10 x 20 mm JIS B 1180 JIS Medium-Strength Steel Hex Head Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with zinc yellow-chromate plating, extending service life in harsh industrial environments
• High tensile strength of 110,000 psi and Class 8.8 grade ensures reliable performance under heavy loads and vibration
• Fine 1.25mm pitch threading provides better adjustment precision and superior resistance to loosening compared to coarse threads
• Class 6g thread fit guarantees consistent mating with nuts and threaded holes for smooth assembly
• External hex drive design allows for high torque application with standard tools, reducing installation time
• Full threading along 20mm length offers maximum grip and flexibility in various material thicknesses
• JIS B 1180 compliance ensures international quality standards for global engineering projects

Professional Applications & Engineering Value

This M10 hex head screw delivers exceptional engineering value through its Class 8.8 steel construction and zinc yellow-chromate finish, specifically engineered to address common industrial fastening challenges. The combination of 110,000 psi tensile strength and Rockwell C21 hardness prevents thread stripping and head deformation under extreme mechanical stress, while the fine metric thread pitch maintains secure connections in high-vibration environments like automotive assemblies and heavy machinery. The fully threaded design ensures maximum engagement in both thin and thick materials, eliminating the need for multiple screw types across different applications. These industrial-grade fasteners provide reliable performance in automotive frame assemblies, equipment manufacturing, and structural applications where corrosion resistance and consistent clamping force are critical for long-term operational safety.

Specification Summary & Compliance

This metric fastener features M10x1.25mm fine threads with Class 6g thread fit tolerance ensuring precise engagement with mating components. The 20mm length and fully threaded configuration provide versatile application coverage. Manufactured to JIS B 1180 specifications, these hex head screws maintain dimensional accuracy and mechanical properties required for industrial applications. The zinc yellow-chromate plating offers superior corrosion protection while maintaining electrical conductivity. Class 8.8 strength rating confirms compliance with international mechanical property standards for medium-strength steel fasteners, suitable for most general engineering applications requiring reliable performance and durability.