S-91087A241 5/16"-18 x 2" Wood Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with black-phosphate steel coating for extended service life in demanding environments
• Enhanced torque transmission through T40 Torx drive system preventing cam-out and tool slippage
• Optimal material displacement with thread forming design creating stronger, vibration-resistant connections in wood and sheet metal
• Flush installation capability featuring 82° countersink angle and flat head design for smooth, professional finishes
• Simplified installation process with pre-specified H drill bit (0.266") compatibility for precise pilot holes
• Reliable coarse threading with UNC 5/16"-18 configuration ensuring rapid installation and superior pull-out resistance
• Full regulatory compliance meeting RoHS 3 and REACH standards for environmentally responsible manufacturing

Professional Applications & Engineering Value

These thread forming wood screws deliver exceptional performance in sheet metal and wood applications where vibration resistance and permanent fastening are critical. The black-phosphate steel construction provides superior corrosion protection, extending service life in industrial environments. The Torx T40 drive system eliminates cam-out issues common in Phillips drives, allowing higher torque application without damaging the fastener head. The 82° countersink angle ensures flush mounting in various materials, while the thread forming design creates stronger connections by displacing material rather than removing it, resulting in improved holding power and reduced loosening under dynamic loads. These fully threaded screws maximize engagement length for superior pull-out resistance in demanding applications.

Specification Summary & Compliance

Manufactured to precise dimensional standards with UNC coarse thread (5/16"-18) specifications and standard Class 2A thread tolerances. The screws feature fully threaded design with right-hand thread direction and standard flat head profile. Compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring safe use in industrial applications. Designed for use with H drill bit (0.266" diameter) for proper pilot hole preparation in various materials.