S-91280A859 M16 x 120 mm ISO 4017, DIN 933 Medium-Strength Metric Class 8.8 Steel Hex Head Screws

Key Features & Benefits at a Glance

• Exceptional durability with Class 8.8 steel construction providing 110,000 psi tensile strength for reliable performance in demanding environments
• Superior corrosion resistance through zinc plating that extends service life and reduces maintenance requirements
• Optimized torque transmission with external hex drive design ensuring secure installation and easy removal when needed
• Precision threading accuracy with Class 6h thread fit and M16x2mm coarse thread pattern for consistent engagement and vibration resistance
• Full-length threading offering maximum grip length and versatile fastening options across the entire 120mm span
• Proven material hardness at Rockwell C21 ensuring dimensional stability and resistance to wear under load
• Global compliance assurance meeting international standards for quality and environmental safety

Professional Applications & Engineering Value

This M16 hex head screw delivers exceptional engineering value through its Class 8.8 steel construction and zinc plated finish, specifically designed to address critical industrial fastening challenges. The combination of 110,000 psi tensile strength and Rockwell C21 hardness ensures reliable performance in heavy machinery, structural steel connections, and equipment manufacturing where vibration resistance and load-bearing capacity are paramount. The fully threaded design with coarse 2mm pitch provides superior holding power across the entire 120mm length, while the external hex drive enables efficient installation with standard tools. Engineered to DIN 933/ISO 4017 specifications, this metric hex bolt offers predictable performance and interchangeability in global manufacturing environments, making it ideal for automotive, construction, and industrial equipment applications requiring durable, high-strength fastening solutions.

Specification Summary & Compliance

This hex head screw features precise Class 6h thread fit tolerance with M16x2mm coarse thread spacing according to metric system standards. Manufacturing complies with DIN 933 and ISO 4017 specifications for dimensional accuracy and performance requirements. The product meets RoHS 3 (2015/863/EU) compliance for hazardous substance restrictions and REACH (EC 1907/2006) regulations for chemical safety, ensuring environmental responsibility and global market acceptance.