S-90048A201 Length 1 1/4" Tapping Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with zinc-plated steel construction for extended service life in demanding industrial environments
• Excellent thread-forming capability creates permanent, vibration-resistant threads in sheet metal without pre-tapping
• Optimal flush installation with standard flat head profile and 82° countersink angle for smooth, professional finishes
• Maximum holding power through fully threaded design that distributes load evenly across the entire fastener length
• Enhanced driving efficiency with No. 2 Phillips drive that reduces cam-out and improves installation speed
• Precise fit and alignment with Class 2A thread tolerances ensuring consistent performance in sheet metal applications
• Environmental compliance assurance meeting RoHS 3 and REACH standards for safe, sustainable manufacturing

Professional Applications & Engineering Value

These No. 8 Phillips flat head tapping screws are specifically engineered to address common challenges in sheet metal fabrication and assembly. The zinc-plated steel construction provides essential corrosion protection while maintaining high tensile strength for durable fastening solutions. The thread forming technology eliminates the need for separate tapping operations, reducing installation time and labor costs while creating strong, permanent threads that resist loosening under vibration. The 82° countersink angle ensures proper seating in standard sheet metal applications, preventing head protrusion and maintaining clean surface profiles. With full threading along the entire 1-1/4" length, these screws distribute clamping force evenly, reducing stress concentrations and preventing material deformation in thin-gauge metals up to 0.025" thickness.

Specification Summary & Compliance

These tapping screws feature precise Class 2A thread tolerances with 0.164" thread diameter and 15 threads per inch, conforming to A/AB tapping screw type standards. The manufacturing process ensures consistent dimensional accuracy for reliable performance with recommended No. 29 drill bit size (0.136" diameter). The products are fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, guaranteeing they meet current industrial safety and sustainability requirements for global distribution and use.