S-90123A261 Length 4 1/2" ASME B18.2.1 Wood Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 316 stainless steel construction, ideal for harsh environments and outdoor wood applications
• Enhanced torque transmission through the external hex head design, preventing cam-out and ensuring secure fastening
• Strong, reliable wood connections using thread forming technology that creates durable threads without pre-drilling in many wood types
• Optimal grip and holding power with the 3" minimum thread length and pointed tip for precise positioning
• Industry-standard compatibility meeting ASME B18.2.1 specifications for consistent performance and interchangeability
• Environmental and workplace safety with full compliance to RoHS 3 and REACH regulations
• Versatile partial threading allowing unthreaded shank sections for improved shear strength in wood assemblies

Professional Applications & Engineering Value

These 316 stainless steel wood screws deliver exceptional performance in demanding applications where corrosion resistance is critical. The hex head design provides superior torque transmission compared to standard drives, reducing installation time and preventing tool slippage in industrial settings. The thread forming technology creates strong, permanent threads in wood substrates without compromising material integrity, making them ideal for heavy-duty wood fastening in marine environments, chemical plants, and outdoor structures. The combination of right-hand threading and partial threading ensures optimal clamping force while maintaining structural stability in timber construction, decking, and industrial wood assemblies where vibration resistance and long-term reliability are paramount.

Specification Summary & Compliance

This 5/16" x 4-1/2" wood screw features inch system measurements with a 1/2" hex head width and 0.219" head height for standardized tool compatibility. The thread diameter of 0.313" with approximately 9 threads per inch ensures proper engagement in wood materials. Manufactured to ASME B18.2.1 specifications for dimensional accuracy and performance standards. Fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, containing no restricted substances for safe industrial use.