S-91428A111 Length 4" Wood Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance in harsh environments thanks to 316 stainless steel construction
• Enhanced driving torque and reduced cam-out with the external hex head design for secure installation
• Excellent holding power in wood achieved through the thread forming tapping method
• Increased bearing surface area from the integrated flange for superior load distribution
• Optimized grip and material displacement with the pointed tip and partial threading design
• Reliable dimensional consistency with precise 1/4"-7 thread and 4" length for predictable performance
• Compliance with stringent environmental regulations including RoHS 3 and REACH for safe, sustainable use

Professional Applications & Engineering Value

This 316 stainless steel hex head wood screw is engineered to solve critical challenges in demanding wood fastening applications. The thread forming design creates strong, permanent threads in wood without pre-drilling in many cases, eliminating strip-out and providing vibration-resistant connections. The external hex drive allows for high torque application, making it ideal for heavy-duty wood construction where reliability is paramount. The partial threading configuration ensures maximum clamping force where needed while the flanged head distributes load evenly, preventing surface damage. Particularly valuable in marine, coastal, or chemical environments, the corrosion-resistant 316 stainless steel maintains structural integrity where ordinary fasteners would fail, delivering long-term performance in decking, timber framing, and outdoor wood structures.

Specification Summary & Compliance

Manufactured to precise inch system dimensions including 1/4" thread diameter with 7 threads per inch and 4" length. Features right-hand threading and partial threading with 2.95" minimum thread length. The screw meets industry standards for wood fastening applications and complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring safe use in various industrial and commercial settings.