S-97188A425 Length 1 1/4" Tapping Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 316 stainless steel construction, ideal for harsh industrial environments and outdoor applications
• Efficient thread forming design creates strong, permanent threads in sheet metal without pre-tapping, reducing installation time and labor costs
• Secure square drive engagement prevents cam-out during installation, ensuring proper torque application and reducing driver bit wear
• Full threading along 1-1/4" length provides maximum grip and holding power throughout the entire fastener engagement
• Optimized pan head design offers excellent bearing surface for secure fastening while maintaining a low-profile appearance
• Precision-engineered tip and threads ensure smooth penetration and reliable performance in sheet metal up to 0.025" thickness
• Comprehensive regulatory compliance meets RoHS 3 and REACH standards for environmentally responsible manufacturing and global market acceptance

Professional Applications & Engineering Value

These 316 stainless steel thread forming screws deliver exceptional performance in demanding sheet metal applications where corrosion resistance and structural integrity are critical. The thread forming tapping method eliminates the need for separate tapping operations, creating strong, vibration-resistant threads that won't loosen under stress. The fully threaded design ensures maximum load distribution, while the square drive system provides reliable torque transmission without stripping. Ideal for HVAC systems, electrical enclosures, and metal fabrication projects, these tapping screws maintain their integrity in saltwater, chemical, and high-humidity environments, reducing maintenance costs and extending service life in industrial settings.

Specification Summary & Compliance

Manufactured to precise No. 10-12 thread specifications with Class 2A thread tolerances for consistent performance. Features a standard pan head profile with 0.373" diameter and No. 2 square drive compatibility. Designed for use with No. 21 drill bit (0.159" diameter) in materials up to 0.025" thickness. Fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring safe use across global industrial markets.