S-96242A678 5/16"-18 x 3" 12-Point Screws

Key Features & Benefits at a Glance

• Exceptional corrosion resistance with 450 Stainless Steel construction for long-lasting performance in harsh environments
• Superior torque transmission through the external 12-point drive design, preventing tool slippage during high-stress applications
• Enhanced load distribution with integrated flange design that eliminates the need for separate washers
• Precision thread engagement with Class 3A fit ensuring reliable, vibration-resistant connections in critical assemblies
• High-strength performance delivering 170,000 psi tensile strength and Rockwell C37 hardness for demanding structural applications
• Optimized installation efficiency with coarse UNC threading enabling faster assembly in industrial settings
• Versatile partial threading providing both secure clamping and clearance functions in multi-material applications

Professional Applications & Engineering Value

This 12-point screw in 450 Stainless Steel addresses critical engineering challenges in heavy machinery, structural frameworks, and industrial equipment where corrosion resistance and high tensile strength are paramount. The external 12-point drive system delivers maximum torque transfer without cam-out, while the flanged design provides superior bearing surface distribution, preventing surface damage and maintaining joint integrity under extreme vibration. With Class 3A thread fit and UNC coarse threading, these screws ensure rapid installation and reliable performance in time-sensitive manufacturing environments, making them ideal for automotive assemblies, construction equipment, and marine applications where failure is not an option.

Specification Summary & Compliance

Manufactured to precise inch system dimensions with Class 3A thread fit tolerance for superior engagement. Features 5/16"-18 UNC coarse threading with right-hand direction and partial threading configuration. Complies with ASME/ANSI standards for inch fasteners and meets industry requirements for 450 Stainless Steel composition. The 3/8" external 12-point drive ensures compatibility with standard industrial tools while maintaining 170,000 psi tensile strength and Rockwell C37 hardness specifications.