S-90252A259 Length 1 1/4" Wood Screws

Key Features & Benefits at a Glance

• Enhanced corrosion resistance with black-oxide steel coating for long-lasting performance in demanding woodworking environments
• Superior holding power through thread forming technology that creates stronger connections in fiberboard and particleboard
• Clean, flush installation with standard 82° flat head profile and countersink angle for professional finishing
• Secure driving control with Phillips No. 2 drive style that prevents cam-out during installation
• Optimized thread design featuring 0.177" diameter with 10 threads per inch for maximum grip in wood composites
• Precision installation guidance with recommended No. 45 drill bit (0.082" diameter) for proper hole preparation
• Versatile partial threading that combines strong thread engagement with smooth shank for reduced material splitting

Professional Applications & Engineering Value

These Black-Oxide Steel wood screws are specifically engineered to address common challenges in fiberboard and particleboard applications. The thread forming technology eliminates the need for pre-tapped holes while creating denser material compression around threads, significantly reducing strip-out failures in composite wood materials. The flat head design with 82° countersink angle ensures seamless flush mounting in cabinetry, furniture assembly, and architectural woodworking projects. The partially threaded configuration provides concentrated holding power at the engagement point while minimizing stress concentration in sensitive composite substrates. These No. 9 wood screws deliver reliable performance where traditional fasteners often fail, making them ideal for professional woodworking and construction applications requiring durable, corrosion-resistant fastening solutions.

Specification Summary & Compliance

Manufactured to precise dimensional standards with right-hand threading and Class 2A thread tolerances for consistent performance. The screws feature a 0.358" head diameter with -0.042" tolerance and 1-1/4" length with minimum 0.838" thread engagement. Compliant with industry-standard wood screw specifications and suitable for use with recommended No. 45 drill bit preparation. The black-oxide surface treatment provides corrosion protection while maintaining dimensional integrity. These fasteners meet quality standards for professional woodworking applications and industrial fastener requirements.