S-90198A286 Length 2 1/2" 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 chips, reducing assembly time and improving joint integrity
• Optimal material compatibility with pre-drilled No. 29 (0.136") holes and 82° countersink angle for flush, professional finishes in metal assemblies
• Enhanced driving performance with Phillips No. 2 drive style providing secure tool engagement and reduced cam-out during installation
• Full 2-1/2" threading ensures maximum grip length and load distribution across the entire fastener for superior holding power
• Regulatory compliance assurance with RoHS 3 and REACH standards, meeting strict industrial safety and environmental requirements
• Durable flat head design sits flush with surfaces to prevent snagging while maintaining structural integrity under vibration and stress

Professional Applications & Engineering Value

These 316 stainless steel thread forming screws deliver exceptional value in sheet metal fabrication and industrial assembly applications. The thread forming technology eliminates the need for tapping operations while creating stronger, more reliable threads that resist vibration loosening. The corrosion-resistant properties of 316 stainless steel make these Phillips flat head screws ideal for demanding environments where moisture, chemicals, or temperature variations are concerns. The combination of No. 8 screw size with 2-1/2" length provides optimal fastening depth for medium to heavy-gauge sheet metal, while the standardized 82° countersink angle ensures proper seating and professional appearance in finished products.

Specification Summary & Compliance

These tapping screws feature precise 0.164" thread diameter with 15 threads per inch and standard Class 2A thread tolerances. Manufactured to Type A/AB thread forming specifications for sheet metal applications, they require a No. 29 drill bit (0.136" diameter) for proper installation. The screws are fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring they meet current environmental and safety standards for industrial use across global markets.