S-95452A122 Length 4 1/2" ASME B18.2.1 Wood Screws

Key Features & Benefits at a Glance

• Enhanced corrosion resistance with black oxide steel construction for longer service life in demanding wood applications
• Superior torque transmission through external hex drive design prevents cam-out and ensures secure fastening
• Maximum holding power with 2-3/4" thread length providing deep penetration and exceptional pull-out resistance
• Reduced installation effort with thread forming tapping method that creates stronger mating threads without pre-drilling
• Optimized wood engagement featuring 9 threads per inch for balanced insertion speed and holding strength
• Versatile partial threading allows unthreaded shank section to act as a built-in washer for precise clamping
• Industry-standard compatibility with pointed tip design for easy starting and consistent performance across wood types

Professional Applications & Engineering Value

Engineered for heavy-duty wood applications, these 5/16" hex head wood screws solve critical fastening challenges in construction, furniture manufacturing, and structural wood assemblies. The black oxide steel provides essential corrosion protection while maintaining the material's inherent strength, preventing premature failure in humid or outdoor environments. The thread forming design eliminates the need for separate tapping operations, creating stronger female threads in wood substrates that resist stripping under vibration and load cycles. With partial threading and substantial 2-3/4" thread length, these screws deliver optimal clamping force distribution, preventing wood splitting while ensuring maximum joint integrity. The external hex drive accommodates high-torque installation tools, making them ideal for production environments where speed and reliability are paramount.

Specification Summary & Compliance

This 5/16" x 4-1/2" wood screw features precise 0.313" thread diameter with 9 threads per inch and right-hand threading conforming to industry standards. Manufactured to meet ASME B18.2.1 specifications for dimensional accuracy and mechanical properties. Compliant with RoHS 3 (2015/863/EU) restrictions on hazardous substances and REACH (EC 1907/2006) regulations for chemical safety. The partially threaded design with pointed tip ensures proper alignment and efficient installation in various wood materials.