S-94173A334 7/16"-20 x 1 1/4" 12-Point Screws

Key Features & Benefits at a Glance

• Exceptional corrosion resistance with black-oxide coating for reliable performance in harsh industrial environments
• Superior torque transmission through external 12-point drive design, preventing tool slippage during high-tension applications
• Enhanced load distribution with integrated flange, reducing surface pressure and preventing material damage
• Precision thread engagement with Class 2A UNF fine threads ensuring secure, vibration-resistant connections
• Maximum strength reliability from alloy steel construction with 170,000 PSI tensile strength and Rockwell C38 hardness
• Full-thread engagement capability providing consistent clamping force across the entire fastener length
• Industry-standard compatibility with UNF thread specifications for seamless integration into existing assemblies

Professional Applications & Engineering Value

Engineered for demanding industrial applications, these 12-point screws deliver exceptional performance in high-vibration environments where fastener integrity is critical. The black-oxide alloy steel construction provides superior corrosion resistance while maintaining the 170,000 PSI tensile strength required for heavy-duty machinery, automotive assemblies, and structural applications. The external 12-point drive system enables high-torque installation without cam-out, while the integrated flange design eliminates the need for separate washers, streamlining assembly processes. The UNF fine threading ensures precise fitment in critical components where vibration resistance and consistent clamping force are essential for operational safety and longevity.

Specification Summary & Compliance

Manufactured to precise Class 2A thread fit standards with UNF 7/16"-20 fine thread spacing and right-hand threading. The fastener features a 12-point external drive (7/16"), 1-1/4" length, and 0.75" flange diameter. Complies with industry standards for dimensional accuracy and mechanical properties, including Rockwell C38 hardness verification and 170,000 PSI tensile strength certification. Meets relevant industrial specifications for alloy steel fasteners and surface treatment requirements.