S-92351A903 Length 4" ASME B18.2.1 Wood Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 18-8 stainless steel construction, ensuring long-term reliability in humid or outdoor wood applications
• Maximum torque transmission via the external hex head design, allowing for secure installation with standard tools
• Enhanced holding power through thread forming technology, which compacts wood fibers for a tighter, more durable grip
• Optimized load distribution with a 1 1/8" head width and 1/2" head height, reducing the risk of material splitting
• Versatile partial threading that provides strong clamping force while minimizing wood stress
• Precision-engineered dimensions including 0.75" thread diameter and 4" length for consistent performance in heavy-duty wood construction
• Right-hand threading for standard installation procedures and compatibility with common equipment

Professional Applications & Engineering Value

These 18-8 stainless steel hex head wood screws address critical challenges in wood construction and industrial applications where corrosion resistance and structural integrity are paramount. The thread forming design eliminates the need for pre-drilling in many scenarios, creating stronger thread engagement by displacing rather than removing wood fibers. This results in significantly improved pull-out resistance compared to conventional wood screws. The external hex drive system provides exceptional torque capability, preventing cam-out during installation in dense hardwoods or engineered lumber. These features make these heavy-duty wood screws ideal for structural wood connections, outdoor decking, marine applications, and industrial wood fabrication where vibration resistance and long-term performance are essential.

Specification Summary & Compliance

This 3/4" x 4" wood screw features inch system measurements with a 0.75" thread diameter and 4.5 threads per inch. The partially threaded design includes a minimum thread length of 2.667" with a pointed tip for easier starting. Manufacturing and dimensional standards comply with ASME B18.2.1 specifications, ensuring interchangeability and reliable performance. The product is fully RoHS 3 (2015/863/EU) compliant and REACH (EC 1907/2006) compliant, meeting the latest environmental and safety regulations for industrial use.