S-90093A242 Length 3 1/2" Drywall Screws

Key Features & Benefits at a Glance

• Enhanced Drilling Efficiency: Self-drilling tip with No. 2 point size and 13/64" length enables quick penetration into sheet metal up to 0.105" thickness, reducing installation time and tool wear.
• Superior Corrosion Resistance: Black-phosphate steel construction provides a durable protective coating, extending screw life in humid or demanding drywall environments.
• Optimized Thread Design: 0.19" diameter with 16 threads per inch ensures deep, secure biting in drywall and sheet metal, minimizing stripping and improving pull-out resistance.
• Secure Fastening Control: Phillips No. 2 drive offers reliable torque transmission and reduced cam-out, while the flat head sits flush for a clean, professional finish.
• Versatile Partial Threading: Combines 2 1/2" minimum thread length with smooth shank for precise clamping force distribution across materials without over-tightening.
• High-Strength Material: Steel core with thread-forming tapping method creates strong, permanent threads in base materials, ideal for repetitive load-bearing applications.
• Industry-Standard Sizing: Right-hand, No. 10 screw size and 3 1/2" length ensure compatibility with common drywall and sheet metal fastening tools and practices.

Professional Applications & Engineering Value

These drywall screws are precision-engineered to address common installation challenges in commercial and residential construction. The black-phosphate steel material resists oxidation, making them suitable for interior environments where moisture may be present. The drilling tip eliminates pre-drilling in sheet metal up to 0.105" thick, significantly reducing labor time and potential errors. With a partially threaded design and flat head, they provide controlled clamping without over-compression, preventing drywall paper tearing or metal dimpling. The Phillips drive ensures widespread tool compatibility, while the thread-forming method creates durable, vibration-resistant connections in metal studs or drywall panels, enhancing structural integrity in wall assemblies and ceiling installations.

Specification Summary & Compliance

This product adheres to standard inch measurements with a thread diameter of 0.19" and 16 threads per inch, consistent with industry-accepted tolerances for drywall and sheet metal fasteners. The screws feature a standard flat head profile, No. 2 Phillips drive, and right-hand threading. Manufacturing complies with general industry standards for thread-forming screws, and the black-phosphate finish meets common corrosion resistance requirements for construction applications. Materials and processes conform to RoHS and REACH environmental directives, ensuring safe use in various building projects.