S-97646A308 12-24 x 1 1/2" 18-8 Stainless Steel Serrated-Flange Hex Head Screws

Key Features & Benefits at a Glance

• Superior vibration resistance with serrated locking flange design that prevents loosening under dynamic loads
• Excellent corrosion resistance from 18-8 stainless steel construction for long service life in harsh environments
• High tensile strength of 100,000 psi ensures reliable performance in demanding industrial applications
• Easy installation and removal with external hex drive design that provides secure tool engagement
• Optimized load distribution through flanged design that eliminates the need for separate washers
• Consistent thread engagement with Class 2A thread fit and UNC coarse threads for reliable fastening
• Full thread coverage along the 1-1/2" length ensures maximum grip strength and holding power

Professional Applications & Engineering Value

Engineered for demanding industrial environments, these 12-24 UNC hex head screws combine the corrosion resistance of 18-8 stainless steel with advanced locking technology. The serrated flange creates permanent friction locking that effectively counters vibration-induced loosening in machinery, automotive assemblies, and structural applications. The external hex drive provides superior torque transmission compared to standard hex sockets, while the coarse UNC threads ensure rapid installation and reliable performance in various materials. With 100,000 psi tensile strength and Rockwell B100 hardness, these flanged serrated screws maintain integrity under extreme mechanical stress, making them ideal for critical fastening applications where safety and reliability are paramount.

Specification Summary & Compliance

This 12-24 UNC hex head screw features precision Class 2A thread fit with coarse thread spacing, ensuring consistent performance across industrial applications. The fastener meets RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) compliance standards, making it suitable for regulated industries and environmentally conscious operations. Manufactured from 18-8 stainless steel with Rockwell B100 hardness and 100,000 psi tensile strength, the screw delivers reliable mechanical performance while the fully threaded 1-1/2" length and flanged serrated design provide optimal fastening characteristics for professional use.