S-91310A149 M16 x 25 mm ISO 4017, DIN 933 High-Strength Metric Class 10.9 Steel Hex Head Screws

Key Features & Benefits at a Glance

• Exceptional load-bearing capacity with Class 10.9 strength rating and 150,000 psi tensile strength for reliable performance in demanding applications
• Superior corrosion resistance thanks to black steel construction and compliance with RoHS 3 and REACH environmental standards
• Optimized torque transmission through external hex drive design and 24mm head width for secure installation and removal
• Precision threading with M16x2mm coarse thread and Class 6g fit ensures smooth engagement and vibration resistance
• Maximum thread engagement through fully threaded design provides consistent clamping force along the entire 25mm length
• Enhanced durability with Rockwell C32 hardness rating maintains structural integrity under repeated stress
• Global compatibility meeting ISO 4017 DIN 933 standards for seamless integration into international projects

Professional Applications & Engineering Value

These M16 hex head screws deliver critical engineering solutions for heavy-duty industrial applications where failure is not an option. The Class 10.9 steel construction provides exceptional resistance to shear and tensile forces, making them ideal for structural frameworks, machinery assembly, and equipment manufacturing. The coarse metric thread (M16x2mm) with Class 6g tolerance ensures rapid installation and superior vibration resistance in high-stress environments. The fully threaded design maximizes surface contact for uniform load distribution, while the external hex drive accommodates standard tools for efficient maintenance operations. These black steel screws maintain performance integrity in challenging conditions, from manufacturing plants to construction sites where reliable fastening solutions are paramount.

Specification Summary & Compliance

Manufactured to ISO 4017 DIN 933 specifications with Class 6g thread fit tolerance for precision engagement. The M16x2mm coarse thread with right-hand direction follows standardized metric threading protocols. Compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring safe usage across various industries. The Class 10.9 strength rating corresponds to 150,000 psi tensile strength and Rockwell C32 hardness, meeting international quality standards for industrial fasteners.