S-90950A930 Length 3 1/4" Tapping Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 410 stainless steel construction, ideal for demanding outdoor and industrial environments.
• High-strength anchoring providing 225 lbs shear and 190 lbs pull-out resistance, ensuring reliable performance in 3,000 psi concrete.
• Efficient installation with a pointed tip and self-tapping design, reducing setup time and labor costs.
• Secure, removable fastening for block, brick, and concrete, allowing for adjustments and maintenance without compromising integrity.
• Optimized torque application via the 5/16" external hex head, preventing stripping and enabling high-tightening force.
• Versatile compatibility requiring only a 3/16" drill bit, minimizing tooling needs for various masonry applications.
• Durable thread engagement with right-hand threads and a 2 1/8" thread length, enhancing grip and load distribution.

Professional Applications & Engineering Value

Engineered for robust performance, this 1/4" 410 stainless steel tapping screw addresses common challenges in masonry and construction, such as material cracking and anchor failure under dynamic loads. Its pointed tip and self-tapping design facilitate quick penetration into block, brick, and concrete, eliminating the need for pre-tapping and reducing installation errors. The external hex drive ensures high torque transmission, crucial for achieving optimal clamp load in high-vibration environments. By combining corrosion-resistant material with precise right-hand threads, it delivers long-term reliability in structural applications, from HVAC installations to heavy-duty facades, minimizing maintenance and replacement costs.

Specification Summary & Compliance

This screw adheres to standard inch measurements, featuring a 1/4" thread diameter, 3 1/4" length, and Class 2A thread fit for consistent engagement. It complies with industry specifications for tapping screws in masonry, with testing validated in 3,000 psi concrete. The 410 stainless steel material meets general corrosion resistance requirements, and the design supports removable anchor functionality, aligning with common engineering standards for safety and performance in construction applications.