S-90379A117 M10 x 40 mm JIS B 1180 JIS Medium-Strength Steel Hex Head Screws

Key Features & Benefits at a Glance

• Exceptional tensile strength of 110,000 psi ensures reliable performance under high-stress conditions, reducing the risk of fastener failure in demanding applications.
• Superior corrosion resistance with zinc yellow-chromate plating protects against rust and environmental degradation, extending service life in harsh industrial settings.
• Precision fine threading (1.25 mm pitch) with Class 6g fit provides tighter, more secure fastening and improved vibration resistance compared to coarse threads.
• High-strength Class 8.8 steel construction with Rockwell C21 hardness offers excellent durability and resistance to wear and deformation.
• Full threading design allows for maximum grip length and uniform stress distribution across the entire fastener.
• External hex drive head enables easy installation and removal with standard tools, improving assembly efficiency.
• JIS B 1180 compliance guarantees consistent quality and interchangeability in international industrial applications.

Professional Applications & Engineering Value

These M10 hex head screws deliver critical engineering solutions where vibration resistance, corrosion protection, and high tensile strength are paramount. The Class 8.8 steel construction combined with fine metric threading (1.25 mm pitch) provides superior clamping force retention in dynamic load environments, preventing loosening in machinery, automotive assemblies, and structural frameworks. The zinc yellow-chromate plating creates a protective barrier against moisture and chemicals, making these fully threaded fasteners ideal for outdoor equipment, manufacturing plants, and marine applications. With their external hex drive design, they enable quick installation while maintaining JIS B 1180 standard compatibility for global manufacturing requirements.

Specification Summary & Compliance

Manufactured to precise metric dimensions with Class 6g thread fit tolerance ensuring consistent engagement and assembly accuracy. These screws conform to JIS B 1180 specifications for hex head bolts and meet international metric threading standards. The zinc yellow-chromate finish provides RoHS and REACH compliant corrosion protection while the Class 8.8 strength rating (equivalent to ISO 898-1) guarantees mechanical performance for industrial applications.