S-90420A525 Length 2" Tapping Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with galvanic-barrier coated 18-8 stainless steel construction, ideal for harsh industrial environments
• Efficient installation through self-drilling tip that penetrates up to 0.14" thick steel, stainless steel, and sheet metal without pre-drilling
• Enhanced driving torque capability with external hex drive design for secure fastening in high-vibration applications
• Reliable thread formation using thread forming BSD type that creates strong, strip-resistant threads in base materials
• Improved load distribution through integrated flange design that eliminates the need for separate washers
• Full-length threading provides maximum grip and holding power across the entire 2" length
• Precision compatibility with No. 12-14 thread specifications ensuring consistent performance in standardized applications

Professional Applications & Engineering Value

These thread forming tapping screws deliver exceptional value in metal fabrication and industrial assembly where corrosion resistance and installation efficiency are critical. The galvanic-barrier coated 18-8 stainless steel construction prevents galvanic corrosion when joining dissimilar metals, while the self-drilling tip eliminates secondary drilling operations, significantly reducing assembly time in steel, stainless steel, and sheet metal applications. The external hex drive provides superior torque transmission for high-clamp force requirements, and the fully threaded design ensures maximum engagement in structural connections. The integrated flange distributes clamping pressure evenly, preventing material distortion in thin-gauge metals commonly found in HVAC, electrical enclosures, and machinery manufacturing.

Specification Summary & Compliance

Manufactured to BSD tapping screw standards with No. 12-14 thread specification (0.216" diameter, 14 threads per inch). Features right-hand thread direction and Class 2A thread tolerance for reliable engagement. The galvanic-barrier coating on 18-8 stainless steel provides enhanced corrosion protection while maintaining compliance with industry standards for thread forming screws. Suitable for applications requiring penetration of materials up to 0.14" thickness without pre-drilling.