S-91428A500 Length 4" Wood Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 316 stainless steel construction, ideal for humid or marine wood environments
• Enhanced load distribution from the integrated flange design, reducing surface damage and improving joint integrity
• Optimal driving efficiency with the external hex head, allowing high torque application without cam-out
• Stronger thread engagement through thread forming technology, creating secure fastenings in wood without pre-drilling
• Reliable partial threading for controlled clamping force and reduced risk of wood splitting
• Extended service life in demanding applications, backed by 13 TPI and 4" length for deep penetration
• Compliance assurance with RoHS 3 and REACH standards, ensuring safe use in industrial and commercial projects

Professional Applications & Engineering Value

Engineered for demanding wood applications, these 316 stainless steel wood screws address common failure points in outdoor structures, marine fixtures, and high-moisture environments. The thread forming design eliminates the need for tapping by displacing material to create stronger, vibration-resistant threads that won't loosen over time. Combined with the flanged hex head, this screw provides superior pull-out resistance and distributes load over a wider area, preventing surface indentation in softwoods or composite materials. The external hex drive ensures maximum torque transmission for efficient installation in industrial woodworking, decking, and furniture assembly, while the partial threading allows for precise clamping control. Ideal for corrosion-resistant fastening in architectural woodwork, these screws deliver long-term reliability where standard fasteners would degrade.

Specification Summary & Compliance

This 3/16" x 4" wood screw features a right-hand thread with 13 TPI and partial threading up to a minimum of 2-3/8". Manufactured to precise dimensional standards with a 0.313" hex head width and 0.45" flange diameter for consistent performance. The screw complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental safety and industrial suitability for professional wood fastening applications.