S-91280A314 M12 x 130 mm ISO 4014, DIN 931 Medium-Strength Metric Class 8.8 Steel Hex Head Screws

Key Features & Benefits at a Glance

• Superior load-bearing capability with Class 8.8 strength grade and 110,000 psi tensile strength for reliable performance in demanding applications
• Excellent corrosion resistance thanks to the black steel finish, extending service life in harsh industrial environments
• Easy installation and removal with external hex drive and 19mm head width, allowing for standard tool compatibility and efficient assembly
• Optimized thread engagement through coarse M12x1.75mm threading and Class 6g fit, ensuring secure fastening with reduced cross-threading risk
• Versatile partial threading design with 36mm minimum thread length on a 130mm shank, providing flexibility for various material thicknesses
• Consistent dimensional accuracy meeting ISO 4014/DIN 931 specifications, guaranteeing interchangeability and reliable fit in precision assemblies
• Environmentally compliant construction adhering to RoHS 3 and REACH regulations, ensuring safe usage across global markets

Professional Applications & Engineering Value

This M12 hex head screw delivers exceptional engineering value in heavy-duty industrial applications where vibration resistance and structural integrity are critical. The Class 8.8 steel construction with Rockwell C21 hardness provides reliable performance in machinery assembly, structural steel connections, and equipment manufacturing. The partially threaded design allows for both clamping and alignment functions, while the coarse metric thread ensures rapid installation in steel frameworks and construction projects. With its external hex drive and standardized dimensions, this fastener simplifies maintenance operations and reduces assembly time, making it ideal for automotive, construction, and industrial machinery sectors requiring high-strength fastening solutions.

Specification Summary & Compliance

This hex head screw features M12x1.75mm coarse thread with Class 6g tolerance and right-hand threading, manufactured to ISO 4014/DIN 931 specifications. The 130mm length includes partial threading with minimum 36mm thread length, while the 19mm hex head provides standard tool engagement. The fastener meets Class 8.8 strength grade requirements with 110,000 psi tensile strength and demonstrates full compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations for industrial use.