Backer-On Rock-On cement board screws are engineered for reliable fastening in cement board installation and general construction applications. These No. 9 x 1-5/8 inch screws feature a star drive and flat head design that delivers a flush, professional finish while minimizing the risk of cam-out and stripping. The self-drilling and self-tapping design eliminates the need for pre-drilling, saving time on the job.
Serrated threads grip materials securely, keeping your installation strong and stable over time. A zinc-plated finish provides enhanced corrosion resistance for both indoor and outdoor use. The bulk 140-piece pack supplies ample fasteners for larger projects and professional applications.
Features and Benefits
Specifications
| SKU | 9192048 | UPC | 092097235106 |
| Model Number | 23510 | Brand | Backer-On |