S-90379A102 M8 x 16 mm JIS B 1180 JIS Medium-Strength Steel Hex Head Screws

Key Features & Benefits at a Glance

• Superior corrosion protection with zinc yellow-chromate plating, extending service life in harsh industrial environments
• High tensile strength of 110,000 psi ensures reliable performance in demanding heavy-duty applications
• Precision Class 6g thread fit provides consistent engagement and reduces assembly issues
• Rockwell C21 hardness offers excellent resistance to wear and deformation under load
• Full threading design allows for maximum grip length and uniform stress distribution
• External hex drive compatibility enables quick installation with standard tools
• JIS B 1180 compliance guarantees consistent quality and interchangeability in machinery applications

Professional Applications & Engineering Value

These M8 hex head screws deliver exceptional engineering value through their Class 8.8 steel construction and coarse thread metric design. The combination of high tensile strength and zinc yellow-chromate plating addresses common industrial challenges including vibration loosening, corrosion-induced failure, and assembly inefficiency. Perfect for heavy-duty machinery, automotive assemblies, and structural applications, these fully threaded screws provide secure fastening in high-stress environments. The external hex drive ensures quick installation with standard tools, while the precise Class 6g thread fit minimizes cross-threading risks and maintains joint integrity under dynamic loads.

Specification Summary & Compliance

This metric hex screw features M8x1.25 coarse thread with Class 6g tolerance, 16mm length, and full threading. Manufactured from Class 8.8 steel with Rockwell C21 hardness and 110,000 psi tensile strength. The zinc yellow-chromate plating provides corrosion resistance while meeting JIS B 1180 specifications for dimensional accuracy and performance standards. Product complies with industry requirements for industrial screws and machinery applications.