S-91280A079 M8 x 12 mm ISO 4017, DIN 933 Medium-Strength Metric Class 8.8 Steel Hex Head Screws

Key Features & Benefits at a Glance

• Exceptional load-bearing capacity with 110,000 psi tensile strength for reliable performance in high-stress applications
• Superior corrosion resistance with black steel construction ensuring longevity in demanding industrial environments
• Precision-engineered coarse threading (M8 x 1.25mm) enables faster installation and superior vibration resistance
• Class 8.8 strength rating guarantees consistent mechanical properties for critical fastening applications
• Full-threaded design provides maximum grip length and uniform stress distribution across the entire fastener
• External hex drive compatibility allows for standard tooling and efficient installation in confined spaces
• Comprehensive regulatory compliance including RoHS 3 and REACH ensures environmental and workplace safety standards

Professional Applications & Engineering Value

Engineered for demanding industrial applications, these M8 hex head screws deliver exceptional performance in machinery assembly, structural frameworks, and heavy equipment manufacturing. The Class 8.8 steel construction combined with Rockwell C21 hardness provides optimal strength-to-weight ratio, resisting deformation under extreme loads. The coarse thread pitch (1.25mm) ensures rapid installation while maintaining superior resistance to vibration loosening - critical in dynamic industrial environments. The fully threaded right-hand design with Class 6g thread fit guarantees precise engagement and consistent clamping force across mating surfaces, eliminating the need for frequent retightening in high-vibration applications common in manufacturing and construction sectors.

Specification Summary & Compliance

Manufactured to ISO 4017/DIN 933 standards, these metric fasteners feature precise Class 6g thread tolerance ensuring compatibility with standard mating components. The M8 x 1.25mm coarse thread configuration with 12mm length provides standardized dimensional accuracy across applications. Compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations confirms environmental responsibility and workplace safety adherence, while the Class 8.8 strength classification guarantees consistent mechanical performance according to international fastener standards.