S-90198A253 Length 1 1/4" Tapping Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 316 stainless steel construction, ideal for harsh environments and outdoor applications
• Efficient thread forming design creates strong, permanent threads in sheet metal without pre-tapping, reducing installation time
• Optimized 82° countersink angle ensures flush mounting and clean finished appearance in metal assemblies
• Compatible with standard No. 29 drill bits (0.136" diameter) for precise hole preparation and secure fastening
• Full threading along 1-1/4" length provides maximum grip and holding power throughout the material thickness
• Phillips drive with No. 2 size offers common tool compatibility and controlled torque application during installation
• Environmental compliance assurance with RoHS 3 and REACH regulations for safe industrial use

Professional Applications & Engineering Value

This 316 stainless steel tapping screw delivers exceptional performance in demanding sheet metal applications where corrosion resistance and structural integrity are paramount. The thread forming design eliminates the need for separate tapping operations, creating strong, vibration-resistant threads that won't loosen under stress. The flat head profile with 82° countersink sits flush with surfaces, preventing snagging while maintaining aerodynamic and aesthetic requirements. Particularly valuable in marine, chemical processing, and outdoor equipment manufacturing, these Phillips drive screws provide reliable fastening in thin gauge materials up to 0.025" thickness, making them ideal for HVAC systems, electronic enclosures, and automotive panels where corrosion resistant fasteners are essential for long-term durability.

Specification Summary & Compliance

This No. 8-15 x 1-1/4" tapping screw features a 0.164" thread diameter with 15 threads per inch, manufactured to standard Class 2A thread tolerances for consistent performance. The thread forming (Type A/AB) design and right-hand threading ensure proper installation in pre-drilled holes. Compliance includes RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming the absence of restricted substances for industrial safety and environmental protection.