Material & Structure
• Made of carbon steel C1022A for enhanced strength; features high-strength rolling arms with small clearance, ensuring quiet operation, wear resistance, and uniform force distribution.
Key Features
• Bugle Head: Iconic design (earning names like "bugle screw" or "Phillips bugle head screw") – keeps the screw in place without tearing drywall’s outer paper layer. Phillips recess prevents slipping during power drilling.
• Recess: Mostly Phillips-type for non-slip drilling.
• Sharp Point: Facilitates easy penetration into drywall; some variants with drill bits offer extra strength.
• Drill Point (Tek Screw): Suitable for securing sheet metal or other hard materials.
• Surface Treatment: Phosphate-coated and heat-treated for corrosion resistance and increased hardness.
• Coarse Threads (W-type): Ideal for attaching gypsum to wood studs. Wide, deep threads engage wood grain for maximum grip. Note: Wear gloves to avoid cuts during use.
• Fine Threads (S-type): Closely spaced threads – designed for attaching gypsum to metal studs. Sharp, self-tapping threads cut into hard metal
1000/box + bit