S-91290A067 M20 x 90 mm DIN 912, ISO 4762 Alloy Steel Socket Head Screws

Key Features & Benefits at a Glance

• Exceptional load-bearing capacity with Class 12.9 strength rating and 170,000 psi tensile strength for reliable performance in high-stress applications.
• Superior corrosion resistance provided by the black-oxide coating, extending service life in demanding industrial environments.
• Precise torque transmission through the 17mm hex drive socket, ensuring secure installation and preventing tool slippage.
• Optimized thread engagement with M20 coarse (2.5mm pitch) threads and Class 5g6g fit for quick assembly and vibration resistance.
• Enhanced durability from Rockwell C37 hardness, maintaining structural integrity under repeated loads and extreme conditions.
• Versatile partial threading allowing both threaded and unthreaded sections for flexible clamping and alignment in complex assemblies.
• Global compliance assurance meeting DIN 912/ISO 4762 standards plus RoHS 3 and REACH regulations for international project suitability.

Professional Applications & Engineering Value

Engineered for heavy-duty industrial fastening, these M20 socket head cap screws deliver critical performance where failure is not an option. The black-oxide alloy steel construction combats corrosion in manufacturing environments while maintaining 170,000 psi tensile strength – essential for machinery frames, hydraulic systems, and structural supports. The coarse metric thread (M20x2.5mm) provides superior resistance to vibrational loosening in dynamic equipment, while the partially threaded design enables precise positioning in automotive jigs and industrial tooling. With Class 12.9 certification and ISO 4762 compliance, these screws meet the rigorous demands of aerospace templates, heavy machinery assembly, and renewable energy infrastructure where corrosion-resistant fasteners must withstand extreme mechanical stresses.

Specification Summary & Compliance

Manufactured to DIN 912/ISO 4762 specifications with Class 5g6g thread tolerance ensuring precise fit. The 30mm head diameter and 20mm head height provide optimal bearing surface, while the 52mm minimum thread length on a 90mm overall screw delivers versatile engagement options. Full compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations guarantees environmental safety standards are met for global industrial applications.