S-91280A273 M16 x 70 mm ISO 4017, DIN 933 Medium-Strength Metric Class 8.8 Steel Hex Head Screws

Key Features & Benefits at a Glance

• Enhanced structural integrity with Class 8.8 strength grade, providing reliable performance under high-stress conditions
• Superior corrosion resistance from black steel construction, extending service life in demanding industrial environments
• Optimized torque transmission through external hex drive design, ensuring secure installation with standard tools
• Maximum thread engagement with fully threaded M16x2mm coarse pitch configuration, delivering superior holding power
• Precision manufacturing to Class 6g thread fit standards, guaranteeing consistent performance and compatibility
• Exceptional mechanical properties including 110,000 psi tensile strength and Rockwell C21 hardness for heavy-duty applications
• Global compliance assurance meeting ISO 4017, RoHS 3, and REACH standards for international project specifications

Professional Applications & Engineering Value

These M16 hex head screws deliver exceptional engineering value in industrial fastening applications where reliability is paramount. The Class 8.8 steel construction provides the necessary tensile strength (110,000 psi) and Rockwell C21 hardness to withstand vibration, dynamic loads, and environmental stressors in machinery assembly, structural frameworks, and heavy equipment manufacturing. The fully threaded metric design with coarse 2mm pitch ensures rapid installation and maximum thread contact in various materials, while the external hex drive facilitates high-torque application without stripping. The black surface treatment offers basic corrosion protection, making these ISO 4017 compliant fasteners ideal for both indoor industrial settings and protected outdoor applications where frequent disassembly isn't required.

Specification Summary & Compliance

Manufactured to precise metric dimensions with M16x2mm coarse threads meeting Class 6g tolerance standards. These hex head screws comply with ISO 4017 specifications (equivalent to DIN 933) for dimensional accuracy and mechanical properties. The 70mm length provides versatile fastening capability across various material thicknesses. Regulatory compliance includes RoHS 3 (2015/863/EU) for restricted substance management and REACH (EC 1907/2006) certification, ensuring environmental responsibility and workplace safety standards are maintained throughout the product lifecycle.