S-96242A521 1/4"-20 x 1 1/2" 12-Point Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 450 Stainless Steel construction for extended service life in harsh environments
• Exceptional torque transmission through external 12-point drive design, preventing tool slippage during high-torque applications
• Enhanced assembly integrity with Class 3A thread fit ensuring precise, vibration-resistant connections
• Reduced component count through integrated flange design that eliminates the need for separate washers
• High-strength performance with 170,000 psi tensile strength and Rockwell C37 hardness for heavy-duty applications
• Optimized load distribution from the flanged design that minimizes surface pressure and material stress
• Reliable coarse threading with UNC 1/4"-20 configuration for faster installation and reduced cross-threading risk

Professional Applications & Engineering Value

Engineered for demanding industrial environments, these 12-point flanged screws deliver critical performance advantages where reliability is non-negotiable. The 450 Stainless Steel construction provides excellent corrosion resistance for applications exposed to moisture, chemicals, or outdoor elements. The external 12-point drive system offers superior torque transmission compared to standard hex drives, making these fasteners ideal for high-vibration machinery, heavy equipment assembly, and aerospace applications where precise torque control is essential. The partially threaded design with UNC coarse threading ensures rapid installation while maintaining maximum grip length, while the integrated flange provides stable bearing surface without requiring additional components. These features combine to create a fastener solution that reduces assembly time, minimizes maintenance requirements, and extends equipment service life in critical industrial settings.

Specification Summary & Compliance

This 1/4"-20 UNC threaded screw features Class 3A thread fit for precision applications, ensuring tight tolerances and reliable performance. The manufacturing adheres to standard inch system measurements with coarse thread spacing and right-hand thread direction. With a minimum thread length of 1" and overall length of 1-1/2", these screws are manufactured from 450 Stainless Steel achieving Rockwell C37 hardness and 170,000 psi tensile strength. The product complies with industry standards for dimensional accuracy and material specifications suitable for demanding industrial applications.