S-96242A813 3/8"-24 x 2 1/4" 12-Point Screws

Key Features & Benefits at a Glance

• Enhanced corrosion resistance with 450 Stainless Steel construction for longevity in harsh environments
• Superior torque transmission via the external 12-point drive and 3/8" drive size, minimizing tool slippage
• Exceptional tensile strength rated at 170,000 psi for reliable performance under high-stress conditions
• Precise thread engagement with Class 3A fit and UNF fine threading, ensuring secure, vibration-resistant connections
• Integrated flange design eliminates the need for separate washers, simplifying installation and distributing load evenly
• Optimized partial threading provides unthreaded shank strength where needed while maintaining full thread functionality
• Consistent hardness at Rockwell C37 guarantees dimensional stability and wear resistance through repeated use

Professional Applications & Engineering Value

Engineered for demanding industrial applications, these 12-point flanged screws deliver critical advantages in assembly efficiency and joint integrity. The 450 Stainless Steel composition offers excellent resistance to corrosion and oxidation, making these fasteners ideal for chemical processing, marine equipment, and outdoor machinery where environmental factors degrade ordinary fasteners. The UNF fine threading and Class 3A thread fit provide superior clamp load retention in high-vibration environments such as power transmission systems and heavy vehicle assemblies. The integrated flange acts as a built-in washer, reducing part count while increasing bearing surface—saving assembly time and preventing surface damage. Combined with the external 12-point drive, these screws enable high-torque installation with standard tools, ensuring reliable performance in structural, automotive, and aerospace fastening applications where failure is not an option.

Specification Summary & Compliance

This 3/8"-24 UNF screw features Class 3A thread tolerances for precision fit, partial threading with minimum 1 1/8" thread length, and right-hand thread direction. Manufactured to applicable ASME/ANSI standards for dimensional consistency, it complies with RoHS and REACH environmental directives. The Rockwell C37 hardness and 170,000 psi tensile strength meet rigorous industrial requirements for heavy-duty fastening applications.