S-91087A124 1/4"-20 x 1 1/2" Wood Screws

Key Features & Benefits at a Glance

• Superior torque transmission with T30 Torx drive design, preventing cam-out and ensuring secure fastening in demanding applications
• Enhanced corrosion resistance through black-phosphate steel coating, providing durable protection in various environmental conditions
• Efficient thread-forming capability that creates strong mating threads in sheet metal and wood without pre-tapping requirements
• Optimized countersinking with 82° flat head profile for flush installation and clean finished appearance
• Reliable coarse threading using UNC 1/4"-20 specification for quick installation and strong holding power in wood applications
• Full threading along 1-1/2" length ensures maximum grip and load distribution throughout the fastened materials
• Simplified installation process with compatible No. 3 drill bit sizing for precise pilot hole preparation

Professional Applications & Engineering Value

These 1/4"-20 Torx wood screws deliver exceptional performance in both sheet metal and wood applications where vibration resistance and long-term reliability are critical. The thread-forming design eliminates the need for separate tapping operations, reducing installation time while creating stronger thread engagement that resists loosening under stress. The black-phosphate steel construction provides substantial protection against oxidation, making these screws ideal for industrial environments where moisture or chemical exposure may be present. The T30 drive system ensures maximum torque transfer without stripping, while the standard flat head profile with 82° countersink allows for seamless flush mounting in finished assemblies. These features combine to create a versatile industrial wood screw solution that maintains structural integrity across numerous fastening scenarios.

Specification Summary & Compliance

Manufactured to precise dimensional standards with UNC coarse threading (1/4"-20) and fully threaded design for consistent performance. These thread-forming screws feature a right-hand thread direction and standard flat head profile compatible with 82° countersink requirements. The product maintains compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental responsibility and industrial safety standards. Installation requires a No. 3 drill bit (0.213" diameter) for proper pilot hole preparation in designated materials.