Backer-On No. 9 x 1-1/4 in. Star Flat Head Serrated Cement Board Screws 23505

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DESCRIPTION

Backer-On Rock-On Cement Board Screws are designed for attaching HardieBacker or equivalent fiber cement backerboard to wood or light gauge steel studs. The patented serrated head design countersinks for flush seating at any angle, providing a smooth surface for tile. Conforms to ANSI standards for cement board installation.

• Designed for attaching cement backerboard to wood or light gauge steel studs
• Patented serrated head design countersinks for flush seating at any angle
• Serrated thread forms require less torque for faster installation
• Can be driven close to the edge of all cement boards without fractures or blowouts
• Stikfit recess enables one-handed driving while eliminating cam-outs and wobbling
• Conforms to ANSI standards for cement board installation