S-91280A576 M8 x 80 mm ISO 4017, DIN 933 Medium-Strength Metric Class 8.8 Steel Hex Head Screws

Key Features & Benefits at a Glance

• Exceptional tensile strength of 110,000 psi ensures reliable performance under high-stress conditions, reducing the risk of fastener failure
• Superior corrosion resistance with zinc plating protects against rust and environmental degradation, extending service life in demanding industrial environments
• Precision Class 6h thread fit provides consistent engagement and vibration resistance, maintaining joint integrity over time
• Rockwell C21 hardness rating offers excellent wear resistance and durability for repeated assembly and disassembly cycles
• Full threading along the 80mm length allows for maximum adjustability and secure fastening across various material thicknesses
• External hex drive design enables high-torque installation with standard tools, streamlining assembly processes
• Coarse thread pitch (1.25mm) facilitates quicker installation and reduces cross-threading risks in production environments

Professional Applications & Engineering Value

This M8 hex head screw delivers exceptional engineering value through its Class 8.8 steel construction and zinc plated finish, specifically designed to address common industrial fastening challenges. The combination of 110,000 psi tensile strength and Rockwell C21 hardness ensures reliable performance in heavy machinery, structural assemblies, and equipment manufacturing where vibration resistance and load-bearing capacity are critical. The fully threaded metric coarse pitch design provides superior grip in both metallic and non-metallic materials, while the external hex drive allows for efficient installation with common tools. These industrial fasteners effectively solve durability concerns in automotive, construction, and manufacturing applications where corrosion resistance and long-term reliability are paramount requirements.

Specification Summary & Compliance

This metric hex head screw features precise Class 6h thread fit tolerance and complies with ISO 4017/DIN 933 manufacturing standards for dimensional accuracy and performance consistency. The fastener meets RoHS 3 (2015/863/EU) compliance for hazardous substance restrictions and REACH (EC 1907/2006) regulations for chemical safety. With M8 x 1.25mm coarse thread specifications and 80mm fully threaded design, this Class 8.8 strength grade screw ensures reliable performance across various industrial applications requiring certified fastening solutions.