Backer-On #10 x 1-5/8 in. Zinc-Plated Steel Flat-Head Square Cement Board Screws (150-Pack)-23410 - The Home Depot
Message to Our Customers


Model # 23410

Internet # 100174717

Store SKU # 147461

#10 x 1-5/8 in. Zinc-Plated Steel Flat-Head Square Cement Board Screws (150-Pack)

Backer-On #10 x 1-5/8 in. Zinc-Plated Steel Flat-Head Square Cement Board Screws (150-Pack)

This item has been discontinued.
The Home Depot no longer carries this specific product.

$8.76 / each


Model # 23410

Internet # 100174717

Store SKU # 147461

The Backer-On #10 x 1-5/8 in. Zinc-Plated Steel Flat-Head Square Cement Board Screws (150-Pack) are designed for attaching HardiBacker fiber-cement backer board to wood or light-gauge steel studs. The screws are great for use in areas of high moisture.

  • Use to attach HardiBacker fiber cement backer board to wood or light gauge steel studs
  • Ideal for use in high-moisture areas such as baths and showers, sink backsplashes, countertops and floors
  • Zinc-plated steel construction
  • Corrosion-resistant finish helps prevent rust from bleeding into tile
  • #10 diameter for increased strength in dense board
  • Rib design under the head countersinks for flush seating in board
  • Self-drilling point eliminates the need to pre-drill
  • Specialized thread design for easy installation into dense board material
  • Patented/serrated for lower installation torque
  • Conforms with ANSI A108.11 for cement board attachment
  • Install with a standard screw gun (not included) and a #2 square drive bit (included)

Info & Guides

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Assembled Depth (in.) 
.19 in 
Assembled Height (in.) 
1.625 in 
Assembled Width (in.) 
.19 in 
Screw Length 
1-5/8 in 
Drive Style 
Internal Square 
Driver bit included 
Fastener Callout Size 
#10 x 1-5/8" 
Fastener Plating 
Fastener Thread Type 
Fastener Type 
Specialty Fastener 
Fastener/Connector Material 
Epoxy topcoat 
Finish Family 
Head Style 
Measurement Standard 
Package Quantity 
Primary Use 
Attaching HardiBacker fiber-cement backerboard to wood or light gauge (26-20)steel. 
Product Weight (lb.) 
.009 lb 
Self drilling 
Self tapping 
Tamper Resistant 
Warranty / Certifications
Manufacturer Warranty 
ITW Brands warrants that this product is free from defects in material and workmanship. ITW Brands' sole liability for any breach of this warranty shall be to replace this product or refund the purchase price. 


Rated 4.2 out of 5 by 5 reviewers.
Rated 1.0 out of 5.0 by Disappointing When I was in the store buying HardiBacker I saw these and thought, "oh, good, these will be perfect," so I bought a box. They claim to be self-drilling. I say, not so much. I have to get the weight of my body behind the drill and push hard to get these things to self start. In an awkward position, like overhead where I have to push with just my arms, they just spin. They claim to countersink themselves. Again, not so much. Each time I drove a screw home I had to back it out to brush compacted debris out from under the screw head, then drive it back in again to get it to actually countersink, and even then I don't think it really went deep enough. Also, each time I drove a screw home it had a tendency to lift the panel away from the stud just a bit. I would have to back the screw out far enough to let the panel press back against the stud, then drive the screw home again to get the panel to lay flat. Lastly, when the screw bottomed out, more often than not the square drive bit would cam out of the head. It didn't matter if I used their bit or one of my own. This further undermined the effectiveness self-countersink feature. When I used up the box, I used philips-drive coated deck screws to finish the job. They actually worked better. October 11, 2012
Rated 5.0 out of 5.0 by great screws The flat square head makes it easy to drive in flush. Cosmetically easy to cover with a touch of Spackle. August 28, 2014
Rated 5.0 out of 5.0 by Only way to do it! The BackerOn board screws worked perfect. It is easier to counter sink the head if you use an old drill bit to make a starter hole. March 4, 2014
Rated 5.0 out of 5.0 Great for cement board These work great. As for the guy that found rust on the 1-1/4 in screws. I wouldn't think you'd have that much moisture under your tile. Perhaps the guy having trouble with these ones maybe wasn't using the proper tool. I drive many of these and use one of my cordless imps tots. They drive them in just below flush each time effortlessly January 11, 2013
Rated 5.0 out of 5.0 by love these! love square head--and they included a driver for my drill (which I didn't need, but nice to have extra). enough point to get them started and they were really perfect for the cement backer board. January 24, 2012
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Store Exclusive. This item is available for purchase in select stores only.