Backer-On Cement Board Screws Rock-On No. 9 x Star Flat Head

Backer-On Rock-On No. 9 x 1-5/8 in. L Star Flat Head Cement Board Screws 140 Pk

• Serrated head design for flush seating even at an angle
• Star drive with T-25 bit provides Stikfit for easy one-handed installation and eliminates cam-outs
• Patented sharp point offers immediate pick-up and eliminates the need to pre-drill
• Serrated thread forms require less torque for faster installation
• Patented design allows attaching close to edge on cement board, reducing fractures or blow outs
• Premium corrosion resistant finish
• Use to attach cement board to wood or light gauge steel studs
• Conforms to ANSI A108.11 standards for cement board attachment

Backer-On Rock-On 1-5/8 in. cement board screws are designed for attaching Hardie Backer or equivalent fiber cement backer board to wood or light gauge steel studs. Backer-On Rock-On’s patented serrated head design countersinks for flush seating at any angle providing a smooth surface for tile. The Star drive recess with T-25 bit provides Stikfit for 1-handed installation. Backer-On Rock-On screws feature a Climacoat corrosion-resistant finish that prevents rust from bleeding into the grout and are perfect for use in high-moisture areas such as baths showers countertops and floors. Conforms to ANSI A108.11 for cement board attachment. Backer-On Rock-On screws can be installed with a standard impact or drill/driver.