34% More Pull-Over Resistance at 1mm

Why TDSP/CDSP Holds Drywall Tighter — Tested, Measured, Proven

The TDSP/CDSP features a reinforced Phillips drive for max torque and a stepped bugle head protecting drywall paper. Its core innovation is a dual-to-single thread transition: the larger top thread securely grips the drywall after piercing the stud, ensuring a tight clamp. Standardized 12mm drywall tests prove a 34% higher pull-over force at 1mm displacement and an 18.5% higher ultimate load (430N).

Note: Results are highly reproducible using standard-strength drywall.