S-90161A551 Length 2 1/4" Tapping Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with blue protective coating for extended service life in harsh environments
• Exceptional holding power with 225 lbs shear and 190 lbs pull-out strength for reliable anchoring in concrete and masonry
• Dual-drive convenience featuring external hex/slotted head for flexible installation with standard tools
• Optimized for 3,000 psi concrete with proven performance in demanding construction applications
• Easy installation compatibility using standard 3/16" drill bits with 1" minimum embedment depth
• Removable design allows for adjustments and temporary installations without compromising structural integrity
• Precision threading ensures secure engagement in concrete, brick, and block substrates

Professional Applications & Engineering Value

Engineered specifically for concrete, brick, and block applications, this blue corrosion-resistant coated steel tapping screw addresses critical challenges in construction and industrial fastening. The external hex/slotted drive provides versatile installation options while maintaining torque transmission efficiency. With 1/4" diameter and 2-1/4" length, it delivers optimal thread engagement in 3,000 psi concrete, preventing loosening under vibration and load variations. The pointed tip facilitates precise starting and reduces installation effort, while the removable feature offers flexibility for temporary structures or maintenance access without damaging the substrate.

Specification Summary & Compliance

This 1/4" x 2-1/4" tapping screw features standard right-hand threading with dimensional accuracy suitable for industrial applications. Manufactured from blue corrosion-resistant coated steel, it meets performance requirements for concrete anchoring with specified 225 lbs shear strength and 190 lbs pull-out resistance. Compatible with 3/16" drill bits and requiring 1" minimum installation depth, the screw conforms to industry standards for masonry and concrete fasteners. The product is designed for reliable performance in construction environments and complies with relevant material and safety specifications for industrial fastening applications.