S-91280A741 M12 x 120 mm ISO 4014, DIN 931, ISO 898 Medium-Strength Metric Class 8.8 Steel Hex Head Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with zinc plating that extends service life in demanding industrial environments
• High tensile strength of 110,000 psi ensures reliable performance under heavy loads and vibration
• Class 8.8 strength rating provides consistent mechanical properties for critical structural applications
• Precise Class 6h thread fit enables smooth assembly and secure fastening without cross-threading
• External hex drive design allows for high torque application with standard tools
• Partially threaded shank offers optimal grip length control for varied material thicknesses
• Comprehensive compliance with international standards including DIN 931 and ISO 4014

Professional Applications & Engineering Value

This M12 hex head screw delivers exceptional engineering value through its Class 8.8 steel construction and zinc-plated finish, specifically designed to address common industrial challenges. The coarse 1.75mm pitch thread provides rapid installation in structural steel, machinery assembly, and construction applications where vibration resistance is critical. The partially threaded design ensures maximum clamping force distribution while preventing thread damage in through-holes. With Rockwell C21 hardness and external hex drive, this fastener withstands high torque requirements in maintenance and manufacturing operations, reducing installation time and improving joint integrity across multiple industrial sectors.

Specification Summary & Compliance

This metric fastener features precise Class 6h thread fit with M12 x 1.75mm coarse threading and 30mm minimum thread length. Manufactured to ISO 4014 and DIN 931 specifications with Class 8.8 strength grade. Fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring safe use across global industrial markets.