S-91478A634 Length 2 1/2" ASME B18.2.1 Wood Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with zinc-plated steel construction for long-lasting performance in demanding wood applications
• Enhanced driving torque and reduced cam-out thanks to the external hex head design for secure installation
• Exceptional holding power achieved through thread forming technology that creates stronger, more permanent connections in wood
• Optimized load distribution with partial threading design that maximizes grip strength while minimizing wood splitting
• Industry-standard compatibility with 3/8"-7 thread size ensuring reliable performance across various wood construction projects
• Extended service life from the 2 1/2" length providing deep penetration and superior fastening in thick wood materials
• Regulatory compliance assurance meeting ASME B18.2.1 specifications and environmental standards for worry-free procurement

Professional Applications & Engineering Value

These zinc-plated steel wood screws deliver exceptional engineering value through their specialized thread forming design that eliminates the need for pre-drilling in most wood applications. The external hex drive system provides superior torque transmission, preventing stripping during high-torque installations in industrial settings. The partial threading configuration ensures maximum clamping force while reducing stress concentration points that can compromise wood integrity. Ideal for heavy-duty wood construction projects including timber framing, deck building, and structural wood assemblies, these screws offer reliable performance where vibration resistance and long-term structural stability are critical. The combination of corrosion-resistant zinc plating and precise 3/8"-7 thread pitch makes them particularly valuable for outdoor applications and industrial wood fastening where environmental factors and load requirements demand durable, predictable performance.

Specification Summary & Compliance

These wood screws feature precise 3/8"-7 thread specifications with right-hand threading and partial threading design. Manufactured to exacting ASME B18.2.1 standards for dimensional accuracy and performance reliability. The screws maintain compliance with RoHS 3 (2015/863/EU) environmental directives and REACH (EC 1907/2006) regulations, ensuring they meet current environmental and safety requirements for industrial use. The zinc-plated steel construction provides consistent performance across the 2 1/2" length with proper thread engagement characteristics for optimal wood fastening applications.