S-91280A714 M12 x 25 mm ISO 4017, DIN 933, ISO 898 Medium-Strength Metric Class 8.8 Steel Hex Head Screws

Key Features & Benefits at a Glance

• Exceptional durability with Class 8.8 strength rating and 110,000 PSI tensile strength for reliable performance in demanding applications
• Superior corrosion resistance through zinc plating that extends service life in harsh industrial environments
• Optimized installation efficiency with external hex drive design providing secure tool engagement and torque transmission
• Enhanced thread engagement through coarse 1.75mm pitch threading that resists loosening under vibration
• Full-length threading capability allowing complete penetration and maximum holding power across the entire fastener length
• Precise dimensional consistency with Class 6h thread fit ensuring proper mating and reduced assembly issues
• Comprehensive regulatory compliance meeting international standards including RoHS 3 and REACH for global project suitability

Professional Applications & Engineering Value

These M12 hex head screws deliver critical engineering value through their Class 8.8 steel construction and zinc plated finish, specifically designed to address common industrial challenges. The combination of 110,000 PSI tensile strength and Rockwell C21 hardness ensures reliable performance in structural applications, machinery assembly, and heavy equipment where vibration resistance and load-bearing capacity are paramount. The fully threaded design with coarse 1.75mm pitch provides superior grip in various materials, reducing the risk of thread stripping while facilitating quicker installation. As ISO 4017 and DIN 933 certified fasteners, they guarantee dimensional accuracy and interchangeability, making them ideal for maintenance, manufacturing, and construction projects requiring standardized metric components with proven durability and corrosion protection.

Specification Summary & Compliance

These metric hex head screws maintain precise Class 6h thread fit tolerance according to ISO standards, ensuring proper engagement with mating components. Manufacturing complies with ISO 4017 and DIN 933 specifications for dimensional accuracy and ISO 898 for mechanical properties. The fasteners are fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, meeting current environmental and safety standards for industrial use across global markets.