S-91675A333 Length 1 1/4" Tapping Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 410 Stainless Steel construction for long-lasting performance in demanding industrial environments
• Efficient thread forming technology creates stronger, more secure threads in sheet metal without requiring pre-tapped holes
• External hex drive design provides maximum torque transmission and prevents stripping during installation
• Integrated flange feature distributes clamping pressure evenly and eliminates the need for separate washers
• Fully threaded shank ensures consistent holding power along the entire screw length for superior fastening integrity
• Precision-engineered dimensions with No. 29 drill bit compatibility for perfect fit in 0.025" maximum thickness sheet metal applications
• Environmental compliance assurance with RoHS 3 and REACH regulations for global manufacturing acceptability

Professional Applications & Engineering Value

These 410 Stainless Steel hex head tapping screws are specifically engineered for sheet metal assembly challenges where corrosion resistance and structural integrity are paramount. The thread forming technology eliminates common issues with stripped threads in thin materials by cold-forming rather than cutting threads, resulting in stronger connections with improved vibration resistance. The external hex drive combined with the flanged design provides superior installation control and distributes clamping force effectively across wider surface areas. These fully threaded fasteners maintain consistent engagement throughout the material thickness, making them ideal for HVAC systems, electronic enclosures, automotive components, and industrial equipment where reliable sheet metal fastening is critical to operational safety and longevity.

Specification Summary & Compliance

This No. 8-15 x 1-1/4" tapping screw features precision right-hand threads with 15 threads per inch and 0.164" thread diameter, designed for use with No. 29 drill bits (0.136" diameter) in materials up to 0.025" thickness. The thread forming (Type A/AB) manufacturing ensures consistent performance in sheet metal applications. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, meeting international standards for hazardous substance restrictions and chemical safety in industrial fasteners.