S-90000A401 Length 1 1/4" Wood Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 316 Stainless Steel construction, ideal for outdoor and high-moisture environments in wood and composite applications.
• Effortless self-tapping installation thanks to the Type 17 thread cutting design and pointed tip, reducing labor time and eliminating the need for pre-threading.
• Minimized material splitting as the screw requires only a small 1/16" pilot hole, preserving the integrity of wood and plastic-wood composites.
• Secure, non-slip fastening enabled by the square drive (No. 1) and flat head, providing a flush finish and high torque transfer during installation.
• Optimized grip and holding power with a 0.138" thread diameter and 18 TPI partial threading, ensuring strong engagement without unnecessary material stress.
• Reliable long-term performance backed by compliance with RoHS 3 and REACH environmental regulations, ensuring safety and sustainability.
• Versatile 1-1/4" length designed for a wide range of thicknesses in wood and composite materials, offering flexibility for various project needs.

Professional Applications & Engineering Value

These 316 Stainless Steel self-tapping wood screws are engineered to address common fastening challenges in demanding environments. The Type 17 thread cutting feature, combined with a pointed tip, allows for easy penetration into wood and plastic-wood composites, reducing the risk of material cracking and ensuring a tight, secure fit. This design is particularly valuable in construction, deck building, and outdoor furniture assembly, where corrosion resistance is critical for longevity. The flat head sits flush with the surface, providing a clean finish, while the square drive minimizes cam-out for efficient installation. By requiring only a minimal pilot hole, these screws help maintain structural integrity, making them a reliable choice for professionals seeking durability and ease of use in corrosive or variable weather conditions.

Specification Summary & Compliance

This screw adheres to standard inch measurements with a No. 6 size, 1-1/4" length, and 0.138" thread diameter at approximately 18 threads per inch. It features a partially threaded shank and is designed for use with a 1/16" drill bit for pilot holes. The product complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring it is free from hazardous substances and suitable for environmentally conscious projects.