#9 x 1-5/8 in. Serrated Flat Head Star Drive Cement Board Screws (140-Pack)
$1224
- Seats flush even when driven at an angle
- One handed installation (includes T-25 star drive bit)
- Immediate pick-up into cement board
- View More Details
How to Get It
Product Overview
The Backer-On 1-5/8 in. Cement Board Screws are designed for attaching HardieBacker or equivalent fiber cement backerboard to wood or light gauge steel studs. Backer-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 StikfitTM for 1-handed installation. Backer-On screws feature a Climacoat corrosion resistant finish that prevents rust from bleeding into 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 screws can be installed with a standard impact or drill/driver and T-25 Star drive bit (included with product) for cement board fastening done right.
- Serrated head design for flush seating even at an angle
- Star drive with T-25 bit provides StikfitTM for easy 1-handed installation and eliminates cam-outs
- Serrated thread forms require less torque for faster installation
- Patented sharp point offers immediate pick-up and eliminates the need to pre-drill
- Patented design allows attaching close to edge on cement board, drastically reducing fractures or blow outs
- Premium corrosion resistant finish
- Use to attach cement board to wood or light gauge steel studs
- Ideal for use in high moisture areas such as showers, backsplashes, countertops and floors
- Conforms to ANSI A108.11 standards for cement board attachment
Compare Similar Drywall Screws
Best Seller |  |  |  | |
| Brand | Grip-Rite | Backer-On | Backer-On | Rock-On |
| Name | #6 x 1-1/4 in. Philips Bugle-Head Coarse Thread Sharp Point Drywall Screws (1 lb./Pack) | #9 x 1-5/8 in. Serrated Flat Head Star Drive Cement Board Screws (140-Pack) | #9 x 1-1/4 in. Serrated Flat Head Star Drive Cement Board Screws (185-Pack) | #9 x 1-5/8 in. Serrated Flat Head Star Drive Cement Board Screws (140-Pack) |
| Price | $797 | $1098 | $1098 | $1098 |
| Ratings | (4896) | (805) | (804) | (622) |
| Screw Length | 1-1/4 in | 1-5/8 in | 1-1/4 in | 1-5/8 in |
| Size | #6 | #9 | #9 | #9 |
| Drive Style | Phillips | Star | Star | Star |
| Head Style | Bugle Head | Flat Head | Flat Head | Flat Head |
| Fastener/Connector Material | Steel | Steel | Steel | Steel |
| Product Weight (lb.) | 1 lb | 1.06 lb | 1.16 lb | 1.07 lb |
| Features | Coated | Coated,Self Drilling,Self Tapping | Coated,Self Drilling,Self Tapping | Coated,Self Drilling,Self Tapping |
| Interior/Exterior | Interior | Interior | Interior | Interior |
| Package Quantity | 238 | 140 | 185 | 140 |
| Finish Family | Black | Zinc | Zinc | Zinc |
| View Product | View Product | View Product | View Product |
Specifications
Dimensions
Screw Length
1-5/8 in
Thread Pitch (mm)
2.6 mm
Threads Per Inch (TPI)
9.8
Details
Color Family
Green
Drive Style
Star
Fastener Plating
Zinc
Fastener Type
Drywall Screw
Fastener/Connector Material
Steel
Features
Coated,Self Drilling,Self Tapping
Finish
Zinc-plated
Finish Family
Zinc
Head Style
Flat Head
Included
Driver Bit
Interior/Exterior
Interior
Measurement Standard
SAE
Package Quantity
140
Product Weight (lb.)
1.06 lb
Returnable
90-Day
Size
#9
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.
Questions & Answers
Typical questions asked about products:
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Customer Reviews
Mar 3, 2022
Exactly what you need don't get the 1 1/2"
Exactly what you need I use these when building a shower enclosure always have a few leftover be it a shower or tub.
by
Customer review from homedepot.caJul 27, 2020
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.
by
May 16, 2020
These screws were easy to use and work well with the Hardibacker board. They drive down into the...
These screws were easy to use and work well with the Hardibacker board. They drive down into the board well making it easy to level tile without a screw sticking up proud of the surface.
by
Nov 5, 2019
These screws worked as expected. Most screw heads countersunk the first time. The screws that wer...
These screws worked as expected. Most screw heads countersunk the first time. The screws that were still exposed above the surface were my fault for stop driving them short. When I found the exposed heads they went in deeper with a little more effort with the impact driver.
by
Apr 30, 2019
Worked just like it was recommended on video about Hardie Cement Board
Worked just like it was recommended on video about Hardie Cement Board
by
Apr 16, 2019
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.
by
Mar 26, 2019
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.
by
Jan 3, 2019
Excellent countersink desgin, Durable anti corosive finish, reliable star head drive tip included...
Excellent countersink desgin, Durable anti corosive finish, reliable star head drive tip included. My application through Hardie Panel and existing 1/2" composite exterior resulted in a solid to stud finish.I give this is a professional product my highest rating.
by
May 29, 2018
Excellent product. Very reliable. Years ahead of phillips head screws.
Excellent product. Very reliable. Years ahead of phillips head screws.
by
Apr 24, 2018
Excellent for All Cementitious board
Excellent for All Cementitious board
by
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