S-91290A025 M16 x 140 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 demanding applications
• Superior corrosion protection through black-oxide surface treatment, extending service life in harsh industrial environments
• Precise torque transmission via 14mm hex drive and standard socket head profile, preventing tool slippage and ensuring secure fastening
• Optimized thread engagement with Class 5g6g thread fit and coarse 2mm pitch, enabling quick assembly and vibration resistance
• Enhanced durability from Rockwell C37 hardness and alloy steel construction, maintaining integrity under repeated stress cycles
• Versatile partial threading (44mm thread length on 140mm body) for flexible clamping in varied material thicknesses
• Global compliance assurance meeting DIN 912/ISO 4762 standards alongside RoHS 3 and REACH environmental regulations

Professional Applications & Engineering Value

Engineered for high-stress industrial applications, these M16 socket head cap screws deliver critical performance where fastener failure is not an option. The black-oxide alloy steel construction provides superior corrosion resistance compared to standard finishes, while the Class 12.9 strength rating ensures reliable operation in heavy machinery, automotive assemblies, and structural frameworks. The coarse metric thread (M16x2mm) with Class 5g6g tolerance maintains precise engagement in vibration-prone environments, and the partially threaded design allows optimal clamping force distribution across joint interfaces. These socket head screws solve common engineering challenges including thread stripping, head deformation, and environmental degradation through their ISO 4762-compliant manufacturing and hex drive compatibility with standard industrial tools.

Specification Summary & Compliance

Manufactured to DIN 912/ISO 4762 specifications with Class 5g6g thread fit precision. The metric coarse thread (M16x2mm) ensures compatibility with standard industrial components. Full compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, confirming adherence to international substance restriction standards. Class 12.9 strength certification validates the 170,000 psi tensile strength and Rockwell C37 hardness specifications for guaranteed performance in rated applications.