About This Product
Backer-On Rock-On 1-1/4 in. cement board screws (185 pack) are the top choice for securing cement boards. The unique serrated head countersinks to sit flush at any angle, ensuring a smooth surface for tiling. The star drive recess allows for easy one-handed installation and prevents cam outs. The high-quality corrosion-resistant finish stops rust from seeping into grout, making these screws ideal for damp areas like bathrooms and kitchens.
Key Features
Serrated head for flush seating at any angle
Star drive with T-25 bit for simple one-handed use and no cam-outs
Serrated threads need less torque for quicker installation
Sharp point design for immediate pick-up, no pre-drilling needed
Patented design enables attachment close to edges on cement boards, minimizing fractures or blowouts
High-quality corrosion-resistant finish
Suitable for attaching cement board to wood or light gauge steel studs
Meets ANSI A108.11 standards for cement board attachment
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