S-94173A337 7/16"-20 x 2" 12-Point Screws

Key Features & Benefits at a Glance

• Superior torque transmission with external 12-point drive design for secure fastening in high-stress applications
• Exceptional strength and durability from alloy steel construction with 170,000 PSI tensile strength and Rockwell C38 hardness
• Enhanced corrosion resistance through black-oxide surface treatment for extended service life in harsh environments
• Precise thread engagement with Class 2A UNF fine threads ensuring reliable performance in vibration-prone applications
• Integrated flange design eliminates need for separate washers while providing superior load distribution
• Optimized partial threading allows for controlled clamping force and reduced thread damage during installation
• Right-hand thread direction provides standard installation compatibility across industrial equipment and machinery

Professional Applications & Engineering Value

This 12-point screw delivers exceptional engineering value in demanding industrial applications where high torque transmission and reliable fastening are critical. The black-oxide alloy steel construction combined with UNF fine threading addresses common challenges in automotive assemblies, heavy machinery, and industrial equipment where vibration resistance and precise clamping force are essential. The external 12-point drive system prevents tool slippage during high-torque installation, while the integrated flange design distributes load evenly, reducing surface damage and eliminating the need for additional components. With 170,000 PSI tensile strength and Rockwell C38 hardness, this fastener maintains structural integrity under extreme mechanical stress, making it ideal for critical connections in powertrain systems, hydraulic equipment, and structural frameworks where failure is not an option.

Specification Summary & Compliance

This 12-point screw features precise 7/16"-20 UNF fine threading with Class 2A thread fit ensuring consistent engagement and reliable performance. The manufacturing adheres to standard UNF thread specifications with right-hand thread direction and partial threading configuration. The black-oxide surface treatment provides corrosion protection while maintaining dimensional accuracy. The fastener meets industry standards for alloy steel fasteners and complies with relevant industrial specifications for heavy-duty applications, ensuring consistent quality and performance across production batches.