S-91478A544 Length 1 1/4" 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 demanding environments
• Maximum torque transmission through external hex drive design, preventing tool slippage during installation
• Exceptional holding power with fully threaded, thread-forming design that creates strong, permanent bonds in wood
• Easy alignment and penetration thanks to pointed tip design for quick starts and reduced splitting
• Industry-standard compatibility with 1/4"-10 thread specification ensuring reliable fit with standard components
• Regulatory compliance assurance meeting ASME B18.2.1 standards and environmental regulations for global applications
• Versatile 1-1/4" length providing optimal fastening depth for various wood thicknesses in construction and industrial projects

Professional Applications & Engineering Value

These zinc-plated steel hex head wood screws deliver exceptional engineering value through their thread-forming design that eliminates the need for pre-drilling in many wood applications, significantly reducing installation time and labor costs. The external hex drive system provides superior torque transmission compared to traditional screw heads, preventing cam-out and ensuring secure fastening in high-stress construction environments. The fully threaded configuration maximizes surface contact area, distributing load evenly and preventing loosening from vibration or wood movement. Ideal for structural wood assemblies, furniture manufacturing, and outdoor construction projects, these screws maintain integrity in humid conditions thanks to their corrosion-resistant zinc plating, making them suitable for both interior and exterior applications where long-term reliability is critical.

Specification Summary & Compliance

Manufactured to precise dimensional standards with 1/4"-10 thread specification and right-hand threading, these screws ensure consistent performance across applications. The product meets ASME B18.2.1 standards for dimensional accuracy and mechanical properties, guaranteeing reliable fit and function. Compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations ensures environmental responsibility and workplace safety. The combination of zinc-plated steel material and thread forming tapping method provides durable, vibration-resistant fastening solutions for professional woodworking and construction applications.