Customer Reviews for Backer-On #9 x 1-1/4 in. Serrated Flat Head Star Drive Cement Board Screws (185-Pack)

Internet #300657700

Model #23401

Store SKU #1002419400

  • Serrated head for flush seating
  • Star drive with T-25 bit for one-handed installation
  • Serrated single lead thread and sharp point for immediate pick up

Customer Reviews

  • 266 Customer Reviews
  • 4.7 out of 5 stars overall
92% of customers recommended.
Overall Ratings
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Excellent Screw for any backer board
Every screw is perfect. Of course when I hit a nail head underneath then the screw cannot penetrate, but that was rare. This screw made the entire backer board project ALMOST fun! The tip easily penetrates, and the screw head has a digging action which makes the flush setting that-more-easier.
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Worked just like it was recommended on video about Hardie Cement Board
Worked just like it was recommended on video about Hardie Cement Board
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Forget it if you wanna put 1/2” hardie board
Cheap and flimsy. It won’t go through and lots of energy to work with. Should have stick with GRKs. Wanted to try these but now I know what a junk they are.
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Awesome screws for use with Hardy board. It cuts thru the board quick and doesn't split the mater...
Awesome screws for use with Hardy board. It cuts thru the board quick and doesn't split the material.
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Had no issues with these screws. Little pricey, but worked...
Had no issues with these screws. Little pricey, but worked fine. Gotta be careful not to over torque or they will go to deep and break your cement board. I would use them again for any future projects.
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Ease of use and holding strength are good.
Ease of use and holding strength are good.
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nice grip on materials...
nice grip on materials
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I have utilized many types of backer board screws these...
I have utilized many types of backer board screws these work perfectly especially with the star drive head. So far I had no issues with the heads snapping off or the driver stripping the head or stripping period.
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