S-90161A859 Length 4" Tapping Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with a durable blue coating, extending service life in harsh environments like concrete and masonry.
• High-strength performance with 190 lbs pull-out and 225 lbs shear strength, ensuring reliable anchoring in 3,000 psi concrete.
• Efficient Torx drive design for superior torque transfer, reducing cam-out and tool wear during installation.
• Removable and reusable feature allows for adjustments and disassembly without compromising structural integrity.
• Versatile application in concrete, brick, and block, supported by a pointed tip for easy starting and precise placement.
• Optimized installation with a standard 3/16" drill bit, minimizing effort and ensuring proper fit for secure fastening.
• Compliance with safety standards including RoHS 3 and REACH, ensuring environmental and regulatory safety for industrial use.

Professional Applications & Engineering Value

This blue corrosion-resistant-coated steel tapping screw is engineered to address common challenges in construction and industrial fastening, such as material degradation and installation inefficiency. The Torx drive flat head provides exceptional torque control, preventing stripping and enabling quick, secure installations in concrete, brick, and block applications. Its pointed tip and precise thread design facilitate easy penetration and strong holding power, reducing the risk of loosening under dynamic loads. Ideal for heavy-duty anchoring, this screw ensures long-term reliability in environments exposed to moisture and stress, making it a top choice for contractors and engineers seeking durable, compliant fastening solutions.

Specification Summary & Compliance

This screw adheres to standard inch measurements with a thread diameter of 0.25" and length of 4", featuring a right-hand thread direction and standard flat head profile for consistent performance. It meets industry specifications for use with a 3/16" drill bit and 82° countersink angle, ensuring precise installation. Compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, it guarantees safety and environmental responsibility in industrial settings.