S-98093A821 M14 x 70 mm ISO 898-1, DIN 6921 High-Strength Metric Class 10.9 Steel Flanged Hex Head Screws

Key Features & Benefits at a Glance

• Exceptional load-bearing capacity with Class 10.9 tensile strength (150,000 psi) for reliable performance in high-stress applications
• Superior corrosion resistance from black-phosphate steel coating, extending service life in harsh industrial environments
• Optimized torque transmission through the external hex drive and 18mm head width, preventing tool slippage during installation
• Enhanced stability and distribution with integrated 30.5mm flange, reducing surface pressure and preventing loosening under vibration
• Precision threading with M14x2mm coarse thread and Class 6g fit ensures smooth engagement and consistent clamping force
• Rockwell C32 hardness provides excellent wear resistance, maintaining thread integrity through repeated use
• Partial threading design allows for precise grip length control (34mm min thread length) in structural connections

Professional Applications & Engineering Value

This M14 hex head screw delivers critical engineering solutions for heavy machinery, structural steel frameworks, and industrial equipment assembly. The black-phosphate steel construction provides essential corrosion protection in manufacturing plants and outdoor installations, while the Class 10.9 strength rating (150,000 psi tensile strength) ensures joint integrity under extreme dynamic loads and vibration. The flanged design eliminates the need for separate washers, streamlining installation in automotive chassis, construction equipment, and conveyor systems. With ISO 898-1 compliance and metric coarse threading, these partially threaded screws offer predictable failure points and reliable performance in critical bolted connections where safety and durability are paramount.

Specification Summary & Compliance

Manufactured to precise Class 6g thread fit tolerance with M14x2mm coarse thread specification. Fully compliant with ISO 898-1 mechanical properties and DIN 6921 dimensional standards. Meets environmental regulations including RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) compliance. The 70mm length with 34mm minimum thread length ensures consistent performance across industrial applications.