#9 x 1-1/4 in. Serrated Flat Head Star Drive Cement Board Screws (750-Pack)
- Backer-on cement board screws are corrosion resistant
- Use to install Hardie Backer, backerboard and cement board
- Ideal for use in showers, backsplashes, countertops and floors
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Product Details
About This Product
Backer-On 1-1/4 in. cement board screws (750 pack) are the premier fastening solutions for installing cement boards. The patented serrated head design countersinks for flush seating at any angle, providing a smooth surface for tile installation. The star drive recess combined with Stikfit bit supports easy one-handed installations and eliminates cam outs. The premium corrosion resistant finish prevents rust from bleeding into grout, making Backer-On screws the perfect choice for use in high moisture areas such as bathrooms and kitchens.
Highlights
- 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
- Return Policy
Product Information
Specifications
Dimensions
Screw Length | 1-1/4 in |
|---|---|
Size | #9 |
Details
Drive Style | Torx |
|---|---|
Fastener Color | Green |
Fastener Material | Carbon Steel |
Fastener Plating | Polymeric Zinc |
Fastener Type | Cement Board Screws |
Features | Self Tapping |
Head Style | Bugle Head |
Interior/Exterior | Interior |
Measurement System | Inches |
Package Quantity | 750 |
Product Weight (lb.) | 4.66 lb |
Returnable | 90-Day |
Thread Style | Serrated Thread |
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
Can these screws be used to fasten backer board to 16 gauge steel studs if the holes are pre drilled
Thank you for reaching out to us, Charles. These cement boards screws are not designed to penetrate or hold in metal studs. They are meant for wood studs only. Hope this helps.
Do you have to counter sink
Hi there, thank you for your interest in our products. We need a few more details about your specific application as we want to ensure we are providing the best recommendation. Can you please reach out to our experts either by call or email? Please feel free to call us at (800)-222-6990 or email us at tech@paslode.com. There we will gather the necessary specs to recommend the product you will need.
How many screws per 3 x 5‘ rock board. The studs are 16 on center.
Hi there, thank you for your interest in our Rocker On. We need a few more details about your specific application as we want to ensure we are providing the best recommendation. Can you please reach out to our experts either by call or email? Please feel free to call us at (800)-222-6990 or email us at tech@paslode.com. There we will gather the necessary specs to recommend the product you will need.
Can you screww straight into masonary block with out using a pilot drill? If not, do they make a screw like this?
Hi there, thank you for your interest in our products. We need a few more details about your specific application as we want to ensure we are providing the best recommendation. Can you please reach out to our experts either by call or email? Please feel free to call us at (800)-222-6990 or email us at tech@paslode.com. There we will gather the necessary specs to recommend the product you will need.
Can these be used like a tapcon if I pre drill? I want to install over painted concrete chimney block as a base for cultured stone to stick to, since the block is painted.
Hi there, we do not recommend using these screws in place of Tapcon concrete anchors. For this application we do recommend you use Tapcon anchors, they do come in blue and white if you need a better color match.
Can I use these for exterior plank siding application?
Hi Jason, thank you for your question. We do not recommend using these screws for this application. You may be able to use a GRK RT Composite screw but for the best recommendation please call us or email us at: (877) 489-2726 or email us at CS@itwbrands.com.
What type of screws should be used when the hardboard is being attached to pressure treated wood?
Hi there, thank you for your question. We do need some more details to ensure these are the correct screws for your application (such as the thickness of the board and type of wood). Typically, our cement board screws can go through the cement boards into wood. Please feel free to call us at (877) 489-2726 or email us at CS@itwbrands.com.
Do holes have to be pre-drilled to use these screws?
Hello - Thank you for your question. Backer-On screws can self-drill through cement board and do not require any pre-drilling.
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Customer Reviews
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Compare Key Features
Product Snapshot | |||
|---|---|---|---|
Ideal for high-moisture areas, these cement board screws offer easy one-handed installation and prevent rust. | Ideal for cement board installation, with serrated head for flush seating and star drive for easy one-handed use. | Ideal for cement board installation, with self-drilling, rust-resistant, and corrosion-resistant features ensuring a secure, long-lasting hold. | Ideal for customers who want premium corrosion resistance, ensuring easy, secure cement board installation. |
Corrosion Resistance | |||
Self-Drilling Capability | |||
Screw Length | |||
1-1/4 in | 1-1/4 in | 1-5/8 in | 1-1/4 in. |
Thread Design | |||
Serrated Thread | Serrated Thread | Serrated | Serrated thread forms, less torque |
Coating Quality | |||
Premium corrosion resistant finish | Premium corrosion resistant finish | Premium corrosion resistant finish | Premium corrosion resistant finish |
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