S-90330A116 Length 1 5/8" Drywall Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with black-phosphate steel coating, extending screw life in demanding construction environments.
• Enhanced material penetration through thread forming technology, reducing installation effort and preventing material splitting.
• Optimized for thin materials with 0.036" maximum drilling thickness, ideal for precise drywall and sheet metal applications.
• Secure, cam-out resistant fastening with square drive (No. 1) and narrow flat head profile, ensuring reliable torque transfer.
• Reduced risk of over-driving due to the partially threaded shank design, providing consistent clamping force.
• Quick, self-starting installation with a pointed tip, allowing for faster alignment and driving in pre-drilled or thin materials.
• High thread engagement with 18 threads per inch, delivering strong holding power in drywall and sheet metal.

Professional Applications & Engineering Value

These No. 6 x 1-5/8" black-phosphate drywall screws are engineered to address common fastening challenges in drywall installation and sheet metal fabrication. The thread forming design displaces material rather than cutting it, creating stronger threads in brittle substrates like drywall and thin-gauge metal, which minimizes strip-out and improves pull-out resistance. The black-phosphate coating provides a durable barrier against oxidation, crucial for maintaining integrity in interior environments where moisture may be present. The flat head with narrow profile sits flush, reducing the need for extensive countersinking and delivering a clean, professional finish. Combined with a square drive for high torque transmission, these screws ensure efficient, reliable performance for contractors and fabricators seeking precision and durability.

Specification Summary & Compliance

This screw meets standard dimensional requirements for No. 6 screw size with a length of 1-5/8" and right-hand threads. The thread forming tapping method and 18 threads per inch provide consistent engagement. The product is manufactured from steel and complies with industry standards for construction fasteners, including RoHS and REACH environmental directives, ensuring safe and sustainable use in professional applications.