S-91271A622 3/8"-16 x 3/4" IFI 115 12-Point Screws

Key Features & Benefits at a Glance

• Exceptional tensile strength of 170,000 PSI for reliable performance in high-stress applications
• Superior thread fit with Class 3A tolerance ensuring precise, vibration-resistant fastening
• Enhanced durability from alloy steel construction with Rockwell C37 hardness rating
• Integrated flange design eliminates need for separate washers while distributing load evenly
• External 12-point drive provides superior torque transmission and tool engagement
• Full threading along the entire 3/4" length for maximum grip and holding power
• Regulatory compliance with IFI 115, RoHS 3, and REACH for global industrial acceptance

Professional Applications & Engineering Value

These 12-point flanged screws deliver critical engineering advantages in demanding industrial environments where vibration resistance and consistent clamping force are paramount. The alloy steel construction combined with Rockwell C37 hardness provides exceptional resistance to shear forces and material fatigue, making them ideal for heavy machinery, automotive assemblies, and structural frameworks. The UNC coarse threading with Class 3A fit ensures rapid installation while maintaining precision alignment, significantly reducing assembly time in production lines. The integrated flange design eliminates washer inventory requirements while providing superior surface contact, preventing loosening under dynamic loads and reducing maintenance intervals.

Specification Summary & Compliance

This 3/8"-16 UNC flanged screw features precision Class 3A thread fit with coarse thread spacing for optimal engagement. Manufactured to IFI 115 specifications with complete RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) compliance, ensuring environmental responsibility and global regulatory acceptance. The fully threaded design maintains consistent 0.375" thread diameter throughout the 3/4" length, with a 9/16" flange diameter for enhanced load distribution.