S-94173A328 7/16"-14 x 3 1/2" 12-Point Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with black-oxide coating that protects against rust and extends service life in harsh industrial environments
• Exceptional tensile strength of 170,000 psi ensures reliable performance under extreme mechanical stress and vibration
• High-torque capability with external 12-point drive design that prevents tool slippage and enables efficient installation
• Enhanced load distribution through integrated flange design that reduces surface pressure and prevents material damage
• Precision thread engagement with Class 2A fit and UNC coarse threads that provide quick assembly and vibration resistance
• Optimized thread configuration with partial threading that concentrates strength where needed while reducing weight
• Consistent hardness performance at Rockwell C38 that maintains structural integrity through repeated use cycles

Professional Applications & Engineering Value

Engineered for demanding industrial applications, these 12-point screws with black-oxide alloy steel construction address critical fastening challenges in heavy machinery, structural assemblies, and equipment manufacturing. The combination of 170,000 psi tensile strength and Rockwell C38 hardness ensures reliable performance under continuous vibration and dynamic loads, while the UNC coarse thread design facilitates rapid assembly in production environments. The external 12-point drive system provides superior torque transmission compared to standard hex drives, reducing installation time and preventing fastener damage. The flanged design eliminates the need for separate washers, streamlining inventory and installation processes while providing enhanced clamping force distribution across joined surfaces.

Specification Summary & Compliance

This 7/16"-14 UNC 12-point screw features precision Class 2A thread fit with coarse thread spacing, ensuring consistent engagement and interchangeability. Manufactured to industry standards with 0.4375" thread diameter and 1-1/4" minimum thread length, the fastener delivers reliable dimensional accuracy. The partially threaded configuration and 0.75" flange diameter provide optimal performance characteristics for industrial applications. Compliant with relevant industrial fastening specifications and manufactured using materials that meet industry standards for heavy-duty mechanical components.