S-91515A270 Length 2 1/4" Tapping Screws

Key Features & Benefits at a Glance

• Self-drilling capability eliminates pre-drilling requirements, saving labor time and reducing installation costs in steel and sheet metal applications
• Zinc-plated steel construction provides excellent corrosion resistance for extended service life in demanding industrial environments
• Flanged truss head design offers superior load distribution and prevents pull-through while maintaining a low-profile appearance
• Thread forming tapping method creates strong, permanent threads in base materials without generating chips or debris
• Phillips No. 2 drive system ensures secure tool engagement and efficient installation with common industrial drivers
• Full threading along 2-1/4" length delivers maximum grip strength and uniform stress distribution across the entire fastener
• BSD screw specification compatibility guarantees consistent performance and interchangeability in professional applications

Professional Applications & Engineering Value

These No. 10 zinc-plated steel tapping screws are engineered specifically for challenging steel and sheet metal applications where reliability and installation efficiency are critical. The self-drilling tip (No. 3 drill type) penetrates materials up to 0.175" thick without pilot holes, significantly reducing assembly time and labor costs. The thread forming design creates precise, durable threads in base materials while eliminating chip accumulation issues common with thread-cutting alternatives. The flanged truss head provides exceptional clamping force distribution, preventing material deformation and ensuring secure fastening in vibration-prone environments. These industrial fasteners deliver consistent performance in HVAC systems, metal fabrication, electrical enclosures, and structural assemblies where BSD tapping screws are specified.

Specification Summary & Compliance

These tapping screws feature precise 0.19" thread diameter with 16 TPI fully threaded along the 2-1/4" length, manufactured to BSD standards for thread forming applications. The screws maintain consistent dimensional accuracy with Class 2A thread tolerances and are RoHS 3 (2015/863/EU) Compliant, ensuring environmental responsibility while meeting industrial fastener requirements. The combination of zinc-plated steel material and thread forming technology provides reliable performance in accordance with industry standards for metal fastening applications.