S-90252A251 Length 1 3/8" Wood Screws

Key Features & Benefits at a Glance

• Enhanced corrosion resistance through black-oxide steel coating for longer service life in demanding woodworking environments
• Superior material penetration with thread forming technology that creates stronger, more permanent threads in fiberboard and particleboard
• Precision flush installation with standard flat head profile and 82° countersink angle for clean, professional finishes
• Optimized driving efficiency through Phillips No. 2 drive system that reduces cam-out and improves installation control
• Maximum holding power with 0.92" minimum thread length and 11 TPI design that ensures secure fastening in composite wood materials
• Reduced splitting risk with pointed tip and partial threading that minimizes material stress during installation
• Simplified installation process with compatible 5/64" drill bit size for precise pre-drilling and optimal performance

Professional Applications & Engineering Value

These No. 8 wood screws are specifically engineered to address common challenges in fiberboard and particleboard applications where traditional fasteners often fail. The black-oxide steel construction provides essential corrosion protection for interior woodworking projects, while the thread forming technology creates permanent, high-strength threads without removing material - crucial for maintaining structural integrity in composite wood products. The 82° countersink angle and flat head design ensure flush mounting that eliminates protrusions in cabinetry, furniture assembly, and construction applications. With right-hand threading and partial threading, these screws deliver optimal clamping force while minimizing the risk of material splitting, making them ideal for professional woodworking and manufacturing environments where precision and reliability are paramount.

Specification Summary & Compliance

These wood screws feature precise dimensional specifications including 0.164" thread diameter, 11 TPI thread pitch, and 1-3/8" overall length with Class 2A thread tolerances. The manufacturing follows standard inch system measurements with consistent head diameter (0.332") and height (0.1") tolerances. The thread forming tapping method and right-hand thread direction comply with industry standards for wood fastener applications. These screws are engineered for compatibility with standard 5/64" drill bits and are manufactured to meet quality specifications for professional woodworking and construction applications.