Backer-On Rock-On® Cement Board Screws Size:#9 x 1-5/8" (575-Pack) ionization smoke sensor reliably detects

ionization smoke sensor reliably detects particles from fast flaming fires

SPEED-TIP self-feed design effortlessly pulls the bit with minimal effort and faster holes

10 rolls of 200 collated plastic caps

99-260 rail and stile bit set

5 MPH and 850 CFM making the fan ideal for personal cooling

Backer-On Rock-On® Cement Board Screws Size:#9 x 1-5/8" (575-Pack) ionization smoke sensor reliably detectsDesigned for attaching fiberglass reinforced cement board such as Durock* and WonderBoard* to wood or light gauge steel framing. Flush seating in all cement board when angle driven Ability to attach close to edge in all cement boards without fractures or blowouts Stikfit recess for one handed driving, while eliminating cam outs and wobbling Premium corrosion resistant finish to prevent rust from bleeding into grout Why Rock On? Rock On Screws provide