S-90198A141 Length 1/4" Tapping Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 316 stainless steel construction for long-lasting performance in harsh industrial environments
• Flush mounting capability through flat undercut head design that sits perfectly flush with sheet metal surfaces
• Excellent thread-forming performance creates strong, permanent threads in sheet metal without requiring pre-tapped holes
• Optimized installation efficiency with Phillips No. 2 drive that provides reliable torque transfer and quick assembly
• Precise countersinking with 82° angle design ensures proper seating and eliminates protrusion issues
• Full-length threading delivers maximum grip strength and uniform load distribution across the entire fastener length
• Regulatory compliance assurance meeting RoHS 3 and REACH standards for safe industrial use

Professional Applications & Engineering Value

These 316 stainless steel tapping screws are specifically engineered for demanding sheet metal applications where corrosion resistance and flush mounting are critical. The thread forming design eliminates the need for separate tapping operations, reducing assembly time and labor costs while creating stronger threads that resist vibration loosening. The flat undercut head with 82° countersink angle ensures smooth, flush finishes that prevent snagging and maintain aesthetic integrity in visible applications. The Phillips No. 2 drive system provides reliable installation with standard tools, while the fully threaded design offers consistent holding power throughout the entire engagement length. Ideal for HVAC systems, electronic enclosures, and industrial equipment where reliable sheet metal fastening is essential for long-term performance.

Specification Summary & Compliance

This No. 6 x 1/4" tapping screw features precision right-hand threads with 18 threads per inch and thread forming (A/AB type) construction. The fastener requires a No. 32 drill bit (0.116" diameter) for proper installation in materials up to 0.025" thickness. Manufactured to exacting standards with Class 2A thread tolerances, this screw ensures consistent performance and reliable fit. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, meeting the latest environmental and safety requirements for industrial components.