S-90184A404 Length 2 1/4" Tapping Screws

Key Features & Benefits at a Glance

• Exceptional corrosion resistance with 316 stainless steel construction for reliable performance in harsh, moisture-rich industrial environments
• Superior thread forming capability creates precise, secure threads in sheet metal without pre-tapping, reducing installation time and tooling costs
• Optimized Phillips No. 2 drive design provides excellent torque transmission and prevents cam-out during high-torque applications
• Fully threaded shank ensures maximum grip length and uniform stress distribution across the entire fastener length
• Standard pan head profile offers low-profile installation with good bearing surface for secure fastening in sheet metal assemblies
• Right-hand threading with precise No. 10 diameter delivers consistent engagement and reliable clamping force in various sheet metal thicknesses
• Comprehensive regulatory compliance meets RoHS 3 and REACH standards for environmentally responsible manufacturing and global market acceptance

Professional Applications & Engineering Value

This 316 stainless steel tapping screw addresses critical challenges in sheet metal fabrication and assembly operations. The thread forming design eliminates the need for separate tapping operations, significantly reducing labor costs and production time while creating strong, permanent threads in base materials. The Phillips drive system ensures efficient power transfer during installation, minimizing operator fatigue in high-volume assembly lines. With its fully threaded configuration and precise No. 10 diameter, this fastener provides uniform load distribution across the entire engagement length, preventing stress concentration points that can lead to material failure. The combination of 316 stainless steel's superior corrosion resistance and the A/AB thread forming profile makes this screw ideal for demanding applications in marine environments, chemical processing equipment, food processing machinery, and outdoor enclosures where moisture and corrosive elements are constant concerns.

Specification Summary & Compliance

This thread forming tapping screw features precision Class 2A thread tolerances with 12 threads per inch and right-hand threading conforming to standard inch measurement specifications. The fastener maintains 0.19" thread diameter with fully threaded construction for consistent performance. Manufacturing compliance includes RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental responsibility and chemical substance restrictions adherence. The screw is engineered for use with No. 21 drill bit (0.159" diameter) and is specifically designed for sheet metal applications with maximum drilling thickness of 0.025".