S-92351A556 Length 3 1/2" ASME B18.2.1 Wood Screws

Key Features & Benefits at a Glance

• Exceptional corrosion resistance with 18-8 stainless steel construction, ideal for humid or outdoor wood applications.
• Superior torque transmission and easy installation thanks to the external hex head design and pointed tip.
• Enhanced holding power and reduced wood splitting from the thread forming tapping method, which compacts material rather than removing it.
• Optimized for heavy-duty fastening with a long 3 1/2" length and robust 1/4" diameter for secure connections in thick wood.
• Reliable performance and interchangeability ensured by compliance with the ASME B18.2.1 standard.
• Secure partial threading provides a strong grip in the engagement zone while allowing for precise clamping force.
• Environmentally responsible manufacturing with RoHS 3 and REACH compliance, meeting strict industry regulations.

Professional Applications & Engineering Value

This 18-8 stainless steel hex head wood screw is engineered to solve common fastening challenges in wood construction and industrial assembly. Its thread forming design eliminates the need for pre-drilling in many softwood and hardwood applications, reducing installation time and preventing material weakness by compressing wood fibers for a tighter, more vibration-resistant fit. The external hex drive allows for high-torque application with standard tools, ensuring the screw can be driven to the required depth without cam-out. The partially threaded shank concentrates the holding power along the engaged section, providing exceptional pull-out resistance for structural connections, decking, furniture, and timber framing. Made from corrosion-resistant 18-8 stainless steel, it delivers long-term reliability in environments exposed to moisture, making it a durable choice for both indoor and outdoor wood fastening solutions.

Specification Summary & Compliance

This screw features a 1/4" diameter with 10 threads per inch and a 3 1/2" length, manufactured to precise dimensional standards. It conforms to the ASME B18.2.1 specification for hex head screws, ensuring consistent quality and performance. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming it is free of hazardous substances and safe for industrial use.