S-90161A112 Length 2 1/4" Tapping Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with silver-coated steel construction for extended service life in demanding environments
• High-load performance with 150 lbs verified pull-out and shear strength for secure anchoring in concrete, brick, and block
• Quick and easy installation using a standard 3/16" drill bit and external hex drive for efficient assembly
• Reliable holding power tested in 3,000 psi concrete, ensuring dependable performance in structural applications
• Removable design allows for adjustments and reusability without compromising installation integrity
• Right-hand pointed tip enables smooth self-tapping action for reduced installation effort and time
• Environmental compliance with RoHS 3 standards for safe, regulated use in professional projects

Professional Applications & Engineering Value

This 1/4" silver corrosion-resistant tapping screw delivers critical engineering solutions for construction and industrial fastening. The silver-coated steel material provides enhanced protection against rust and degradation in concrete, brick, and block substrates, addressing common failure points in harsh conditions. Its external hex head design ensures high torque transmission during installation, while the pointed tip and right-hand threads facilitate precise, self-tapping insertion without pre-threading. Engineered for 150 lbs pull-out and shear strength and validated in 3,000 psi concrete, this screw offers reliable, long-term anchoring for HVAC mounts, structural fixtures, and masonry applications where vibration resistance and durability are paramount.

Specification Summary & Compliance

This 1/4" diameter x 2-1/4" length tapping screw features a 5/16" hex head width and 15/64" head height for standard tool compatibility. It is designed with a 1-7/8" thread length, 0.636" flange diameter, and requires a 3/16" drill bit with a 1" minimum installation depth. The screw conforms to industry standards for tapping screw anchors and is fully RoHS 3 (2015/863/EU) Compliant, ensuring adherence to environmental and safety regulations for professional use.