Backer-On Rock-On No. 9 X 1-5/8 in. L Star Flat Head Serrated Cement Board Screws
Mfr # 23510
Zoro # G410519267
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Description
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.
- • Patented sharp point offers immediate pick-up and eliminates the need to pre-drill
- • Patented design allows attaching close to edge on cement board, reducing fractures or blow outs
- • Serrated thread forms require less torque for faster installation
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