S-95526A601 Length 5" ASTM A153 Wood Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance from hot-dipped galvanized steel coating, ensuring long-term reliability in humid or outdoor wood applications
• Enhanced torque transmission with external hex drive design, allowing for secure installation and reduced tool slippage
• Improved load distribution through the 0.81" flange, minimizing surface damage and increasing joint stability
• Optimized wood grip with thread forming tapping method and pointed tip, reducing splitting while providing strong holding power
• Versatile partial threading allowing unthreaded shank section to act as a built-in washer for better clamping force
• Industry-standard compliance meeting ASTM A153 for coating quality and environmental regulations (RoHS 3, REACH)
• Heavy-duty construction with 5" length and 3/8" diameter, engineered for demanding wood structural applications

Professional Applications & Engineering Value

These hot-dipped galvanized steel wood screws address critical challenges in heavy-duty wood construction where corrosion resistance and structural integrity are paramount. The flanged hex head design eliminates the need for separate washers while providing superior load distribution across wood surfaces, preventing surface crushing in softwoods and composite materials. The thread forming mechanism creates precise mating threads in wood without removing material, resulting in higher pull-out resistance compared to thread-cutting alternatives. With 7 threads per inch and partial threading, these screws deliver optimal clamping force for timber framing, deck construction, and outdoor structural projects where environmental exposure demands maximum corrosion protection from the thick zinc coating.

Specification Summary & Compliance

Manufactured to precise inch dimensions: 3/8" diameter with 7 threads per inch right-hand thread, 5" length with 3" minimum thread length. Features external hex drive (0.563" width), 0.81" flange diameter, and pointed tip. Compliant with ASTM A153 for hot-dip galvanizing coating requirements, RoHS 3 (2015/863/EU) for hazardous substance restrictions, and REACH (EC 1907/2006) for chemical safety standards. Thread forming design ensures secure fastening in various wood materials without pre-drilling in many applications.