S-90305A114 Length 1 1/4" Drywall Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with black-phosphate steel construction, ideal for demanding construction environments
• Effortless installation thanks to the thread-forming DST design that creates strong, secure threads without pre-drilling in most materials
• Maximum material penetration with a fully threaded, pointed tip for a firm, reliable hold in drywall, wood, and sheet metal
• Clean, flush finishing with a standard flat head profile that sits neatly below or level with the material surface
• High-torque driving capability with a No. 2 Phillips drive, reducing cam-out and tool slippage for efficient fastening
• Versatile application range capable of handling materials up to 0.036" thick, making them suitable for various project scales
• Optimized thread engagement with 18 threads per inch and a 0.138" diameter for a strong, vibration-resistant connection

Professional Applications & Engineering Value

These No. 6 drywall screws are engineered to solve common fastening challenges in construction and fabrication. The black-phosphate steel provides a durable barrier against moisture and oxidation, extending the life of installations in variable climates. The thread-forming (DST) design is crucial for sheet metal and wood applications, as it displaces material to create stronger, strip-resistant threads without the need for a pilot hole, saving time and labor. The combination of a flat head and Phillips drive ensures a secure, flush fit that is ideal for drywall installation where a smooth surface is required for finishing. The fully threaded, pointed tip guarantees quick starts and deep penetration, providing exceptional pull-out strength for a reliable, long-lasting hold in demanding professional settings.

Specification Summary & Compliance

These screws feature a right-hand thread with a diameter of 0.138" and approximately 18 threads per inch, ensuring precision fit. Manufactured to common industrial standards for thread-forming screws, they are designed for use in drywall, wood, and sheet metal with a maximum drilling thickness of 0.036". The construction from black-phosphate steel complies with typical industry requirements for corrosion protection, suitable for general construction applications.