S-94048A274 Length 4 1/2" ASME B18.2.1, ASTM A307, SAE J429 Wood Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with hot-dipped galvanized steel coating for long-lasting performance in outdoor and high-moisture wood applications
• Enhanced torque transmission through external hex drive design prevents stripping and enables high-tightening force application
• Optimal wood holding power with partial threading that concentrates grip strength while reducing wood splitting
• Reliable thread engagement through thread forming design that creates strong, permanent connections in wood materials
• Industry-standard compatibility meeting ASME B18.2.1, ASTM A307, and SAE J429 specifications for consistent quality and performance
• Environmental compliance assurance with RoHS 3 and REACH certification for safe, regulated use in commercial projects
• Versatile 4-1/2" length provides deep penetration for securing thick wood members in construction and framing applications

Professional Applications & Engineering Value

These hot-dipped galvanized steel wood screws deliver exceptional value in demanding wood construction scenarios where corrosion resistance and structural integrity are paramount. The external hex drive configuration ensures maximum torque application without cam-out, making them ideal for high-stress connections in timber framing, deck construction, and outdoor structures. The partial threading design strategically concentrates holding power near the screw tip while the smooth shank reduces wood splitting in dense materials. With thread forming technology, these screws create their own mating threads in wood substrates, eliminating the need for pre-tapping and providing superior pull-out resistance. The robust 5/16" diameter and substantial 4-1/2" length make these fasteners particularly suitable for heavy timber construction, where their right-hand thread direction ensures standard installation compatibility with conventional power tools.

Specification Summary & Compliance

Manufactured to precise dimensional standards with 0.313" thread diameter and 9 threads per inch configuration. These screws feature Class 2A thread tolerances as specified in ASME B18.2.1, ensuring consistent fit and performance. Compliance with ASTM A307 for carbon steel bolting materials and SAE J429 for mechanical properties guarantees reliable strength characteristics. Environmental compliance includes full adherence to RoHS 3 (2015/863/EU) restrictions on hazardous substances and REACH (EC 1907/2006) regulations for chemical safety, making these screws suitable for regulated construction environments and sustainable building projects.