S-91239A458 M8 x 90 mm ISO 7380 Steel Button Head Hex-Drive Screws

Key Features & Benefits at a Glance

• Exceptional load-bearing capability with Class 10.9 strength rating and 140,000 psi tensile strength for reliable performance in high-stress applications
• Superior corrosion resistance provided by black-oxide coating on alloy steel, extending service life in challenging industrial environments
• Optimized installation efficiency through 5mm hex drive design that prevents cam-out and ensures secure tool engagement
• Enhanced thread engagement with fully threaded M8 coarse pitch (1.25mm) design that facilitates quicker assembly and superior holding power
• Precision thread fit meeting Class 6g tolerance standards for consistent performance and reliable mating with corresponding nuts
• Reduced surface protrusion with rounded button head profile that provides a low-profile finish while maintaining high clamping force
• Industry compliance assurance with ISO 7380 specifications and environmental regulations including RoHS 3 and REACH

Professional Applications & Engineering Value

This M8 metric screw delivers critical engineering solutions for heavy-duty industrial applications where vibration resistance and structural integrity are paramount. The black-oxide alloy steel construction combined with Class 10.9 strength rating ensures reliable performance in machinery assembly, automotive components, and construction equipment where dynamic loads and environmental exposure are common challenges. The fully threaded coarse pitch design provides maximum thread engagement while the hex drive configuration enables high torque application without stripping. Engineered to ISO 7380 standards, this rounded head screw maintains consistent dimensional accuracy across production batches, making it ideal for automated assembly processes and maintenance operations requiring repeatable fastening performance.

Specification Summary & Compliance

This high-strength fastener features precision M8 x 1.25mm coarse threads with Class 6g thread fit tolerance, ensuring compatibility with standard metric components. Manufactured to ISO 7380 specifications with complete RoHS 3 (2015/863/EU) compliance and REACH (EC 1907/2006) adherence, meeting the latest environmental and safety standards for industrial applications. The 90mm fully threaded length provides consistent engagement while the Rockwell C32 hardness rating guarantees durability under repeated loading conditions.