S-90123A439 Length 3 1/2" ASME B18.2.1 Wood Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 316 stainless steel construction, ideal for humid or chemically aggressive woodworking environments
• Enhanced torque transmission through the external hex head design, preventing cam-out and ensuring secure installation
• Exceptional holding power with a minimum 2.333" thread length and thread forming design that creates strong, permanent connections in wood
• Optimized thread engagement featuring 6 threads per inch and partial threading for reduced driving torque and minimized wood splitting
• Reliable dimensional consistency meeting ASME B18.2.1 specifications for precise fit and interchangeability
• Environmental compliance assurance with RoHS 3 and REACH compliance for safe industrial use
• Versatile application capability combining pointed tip for easy starting with substantial 3-1/2" length for deep penetration in wood structures

Professional Applications & Engineering Value

These 316 stainless steel hex head wood screws address critical challenges in industrial wood fastening where corrosion resistance and structural integrity are paramount. The thread forming design eliminates the need for pre-drilling in many applications while creating stronger thread engagement by displacing wood fibers rather than removing them. This external hex drive system provides superior torque transmission compared to conventional screw heads, preventing stripping during high-torque installation in dense hardwoods or composite wood materials. The partially threaded configuration with substantial minimum thread length ensures maximum holding power while reducing the risk of wood splitting. Engineered for demanding environments including marine applications, chemical processing facilities, and outdoor structures, these screws maintain their mechanical properties and corrosion resistance even when exposed to moisture, chemicals, and temperature variations.

Specification Summary & Compliance

Manufactured to ASME B18.2.1 dimensional standards with 1/2" thread diameter and 6 threads per inch in right-hand direction. Features partial threading with minimum 2.333" thread length and 3-1/2" overall length. Compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations for industrial safety and sustainability.