S-90161A381 Length 2 1/4" Tapping Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with silver coating for extended service life in demanding construction environments
• Exceptional holding power with 165 lbs pull-out and 195 lbs shear strength tested in 3,000 psi concrete
• Quick and secure installation using standard external hex drive tools for efficient project completion
• Versatile masonry compatibility designed for use in concrete, block, and brick applications
• Precision installation guidance with recommended 1/4" drill bit size and 1" minimum depth for optimal performance
• Removable design flexibility allowing for adjustments and maintenance without compromising structural integrity
• Reliable thread engagement with pointed tip and right-hand threads for smooth penetration and secure fastening

Professional Applications & Engineering Value

Engineered specifically for masonry and concrete fastening applications, these silver corrosion-resistant tapping screws solve critical installation challenges in commercial construction and industrial projects. The external hex drive provides superior torque transmission compared to standard drives, preventing tool slippage and ensuring consistent installation depth in dense materials. The tapping screw design creates its own threads in pre-drilled holes, eliminating the need for separate anchors and reducing installation time by up to 40%. Particularly valuable for concrete, block, and brick applications where vibration resistance and long-term reliability are paramount, these screws maintain their 165 lbs pull-out strength even after repeated thermal cycling and moisture exposure, making them ideal for exterior applications and structural connections requiring dependable performance.

Specification Summary & Compliance

Manufactured to precise dimensional standards with right-hand threads and Class 2A thread fit for consistent performance. The 5/16" diameter and 2" length provide optimal strength-to-size ratio for most masonry applications. Compliant with industry standards for construction fasteners and manufactured using steel substrate with specialized corrosion-resistant coating that meets environmental compliance requirements for industrial use.