S-90252A108 Length 1 1/4" Wood Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with black-oxide steel construction, ensuring long-lasting performance in humid or demanding woodworking environments.
• Enhanced holding power in fiberboard and particleboard due to the thread forming design and 13 threads per inch for maximum material engagement.
• Flush, professional finish achieved with an 82° countersink angle and flat head, preventing surface protrusions and improving aesthetics.
• Efficient installation with Phillips No. 2 drive, providing secure torque transfer and reducing cam-out during driving.
• Optimized for pre-drilling using a 1/16" drill bit, minimizing wood splitting and ensuring precise placement in delicate materials.
• Reliable partial threading that allows unthreaded shank to pull materials tightly together, increasing joint strength.
• Wide application versatility for woodworking, construction, and assembly tasks involving engineered wood products.

Professional Applications & Engineering Value

These black-oxide steel wood screws are precision-engineered to address common challenges in fiberboard and particleboard applications, where material integrity and fastener durability are critical. The thread forming design creates strong, lasting threads without pre-tapping, reducing installation time and preventing strip-out in low-density substrates. With a 0.138" thread diameter and 13 TPI, the screw ensures excellent pull-out resistance, while the flat head with 82° countersink allows for seamless, flush mounting in cabinetry, furniture, and architectural woodwork. The partially threaded shank enhances clamping force, making these Phillips drive screws ideal for professional woodworking and construction projects requiring reliable, corrosion-resistant fastening solutions.

Specification Summary & Compliance

This product adheres to standard inch system tolerances, including head diameter tolerance of -0.035". The screw features right-hand threading, pointed tip, and is designed for use with a 1/16" drill bit. Manufacturing complies with industry standards for dimensional accuracy and material properties. The black-oxide finish provides added corrosion resistance, and the product is suitable for applications requiring consistent performance in wood-based materials.