S-91478A844 Length 6" 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 wood applications
• Maximum torque transmission through external hex drive design preventing cam-out during high-tension installations
• Enhanced holding power with thread forming design that creates stronger engagement in wood substrates
• Optimized load distribution with 1 1/8" hex head providing superior clamping force
• Reduced wood splitting through pointed tip and partial threading for controlled penetration
• Industry-standard compatibility with 4.5 TPI coarse thread pattern for reliable wood fastening
• Extended thread engagement with 3 1/2" minimum thread length ensuring secure connections in thick materials

Professional Applications & Engineering Value

These heavy-duty wood screws are engineered to address critical challenges in wood construction and industrial applications. The zinc-plated steel construction provides essential corrosion protection for both interior and exterior wood projects, while the external hex drive delivers maximum torque transmission without stripping - a common frustration with Phillips or square drives in high-tension applications. The thread forming design creates compressed wood fibers around the threads, significantly increasing pull-out resistance compared to conventional wood screws. With a substantial 3/4" diameter and 6" length, these partially threaded screws are ideal for structural connections, timber framing, and heavy wood assemblies where vibration resistance and long-term reliability are paramount. The right-hand thread with 4.5 threads per inch ensures quick installation while maintaining superior holding strength in both softwoods and hardwoods.

Specification Summary & Compliance

These wood screws feature precise inch system measurements with a 3/4" thread diameter, 6" overall length, and 3 1/2" minimum thread length. Manufactured to ASME B18.2.1 specifications for dimensional accuracy and performance reliability. Fully compliant with RoHS 3 (2015/863/EU) environmental directives and REACH (EC 1907/2006) regulations regarding hazardous substances. The thread forming tapping method and partial threading design meet industrial standards for wood fastening applications, ensuring consistent performance and compatibility with standard installation tools.