S-97972A413 7/16"-14 x 1 1/4" Extreme-Strength Steel Flanged Hex Head Screws

Key Features & Benefits at a Glance

• Exceptional load-bearing capacity with 180,000 psi tensile strength for reliable performance in demanding applications
• Enhanced corrosion resistance through black-oxide steel construction, extending service life in industrial environments
• Superior driving torque transmission via external hex drive design, preventing tool slippage during installation
• Increased bearing surface area with integrated flange, distributing load evenly and reducing surface damage
• Optimized thread engagement with Class 2A UNC coarse threads, enabling faster installation and reduced cross-threading risk
• Full-threaded design provides consistent gripping strength along the entire 1-1/4" length for maximum fastening security
• Robust material hardness at Rockwell C38 ensures excellent wear resistance and durability under vibration

Professional Applications & Engineering Value

This high-strength 7/16"-14 UNC hex head screw delivers exceptional engineering value for industrial assembly applications where vibration resistance and structural integrity are critical. The black-oxide steel construction provides superior corrosion protection in harsh environments, while the fully threaded coarse spacing design ensures rapid installation in production settings. The integrated flange eliminates the need for separate washers, reducing assembly time and providing enhanced clamping force distribution. With 180,000 psi tensile strength and Rockwell C38 hardness, this external hex drive fastener maintains its mechanical properties under heavy loads, making it ideal for machinery, structural steel connections, and heavy equipment manufacturing where reliability cannot be compromised.

Specification Summary & Compliance

Manufactured to precise inch system dimensions with Class 2A thread fit tolerance ensuring consistent mating with standard nuts. Features UNC coarse thread specification (7/16"-14) with right-hand thread direction and complete threading along the 1-1/4" length. The external hex drive (7/16" head width) provides standard tool compatibility. Complies with industry-standard manufacturing specifications for dimensional accuracy and mechanical properties, suitable for applications requiring reliable high-strength fastening solutions in industrial and construction environments.