S-91478A652 Length 8" ASME B18.2.1 Wood Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with zinc-plated steel construction for extended service life in demanding environments
• Maximum torque transmission through external hex drive design, preventing tool slippage during installation
• Enhanced holding power with thread forming technology that creates stronger engagement in wood materials
• Optimized load distribution through partially threaded shank design, reducing wood splitting risk
• Heavy-duty performance with 8" length and 3/8" diameter for critical structural wood applications
• Industry-standard compatibility with 7 TPI thread pattern for reliable performance across wood fastening systems
• Secure fastening integrity with pointed tip design for precise starting and smooth penetration

Professional Applications & Engineering Value

This heavy-duty wood screw addresses critical engineering challenges in construction and industrial wood applications where maximum holding power and long-term reliability are paramount. The zinc-plated steel construction provides essential corrosion protection for both indoor and outdoor environments, while the external hex drive ensures efficient torque transfer during high-stress installations. The thread forming design creates permanent, vibration-resistant connections by compressing wood fibers rather than removing material, significantly enhancing pull-out resistance. With its 8-inch length and 3/8-inch diameter, this screw delivers exceptional performance in structural wood framing, timber construction, and heavy wood assemblies where standard fasteners may fail under sustained loads.

Specification Summary & Compliance

This wood screw features precision right-hand threads with 7 threads per inch (TPI) and partial threading along a 4½" minimum thread length. Manufactured to exacting ASME B18.2.1 standards for dimensional accuracy and performance reliability. The product maintains full compliance with RoHS 3 (2015/863/EU) environmental directives and REACH (EC 1907/2006) regulations regarding hazardous substances, ensuring safe usage across industrial and construction applications.