Model # 23305

Internet #202055940

Rock-On #9 x 1-1/4 in. Phillips High Low Threaded Wafer-Head Cement Board Screws (800-Pack)
0092097233058

Rock-On

#9 x 1-1/4 in. Phillips High Low Threaded Wafer-Head Cement Board Screws (800-Pack)

  • Deep Phillips drive reduces cam-out
  • Countersinks for flush seating
  • Corrosion and rust resitant for long lasting durability
$2286 /each
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Product Overview

Rock-On #9 x 1-1/4 in. High Low Threaded Wafer-Head Phillips Cement Board Screws are ideal for attaching cement board to wood and light-gauge steel. Use these screws for a variety of projects including bathtubs, showers, countertops and flooring applications.

  • Ideal for attaching durock and wonderboard to light gauge steel
  • Use these screws on a variety of projects including work with bathtubs, showers, countertops and flooring applications
  • Steel construction
  • Climacoat coating provides protection against rust and corrosion
  • Deep high low threads allow quick entry and provide maximum holding power
  • Easy to install with a #2 Phillips screw driver (not-included)
  • Special rib design under head countersinks for flush seating in most board
  • No pre-drilling necessary - S-Point pre-drills hole and reduces splitting
  • Deep #2 Philips drive provides good stick fit and reduces cam-out
  • Wide .400 diameter wafer-head provides greater pull-out value
  • #9 diameter screw provides extra strength and reduces head snap
  • When installing hardibacker board, use backer-on screws
  • Building code approved: conforms to ANSI A108.11 for cement board attachment
  • Available in 1-1/4 in., 1-5/8 in., and 2-1/4 in. lengths

Info & Guides

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Specifications

Dimensions

Screw Length
1-1/4 in

Details

ACQ Rated Fastener
Yes
Coated
Y
Drive Style
Phillips
Driver bit included
Yes
Fastener Callout Size
#9 x 1-1/4
Fastener Plating
Zinc
Fastener Thread Type
Hi-Lo
Fastener Type
Specialty Fastener
Fastener/Connector Material
Steel
Finish
Climacoat
Finish Family
Gray
Head Style
Flat
Indoor/Outdoor
Indoor
Measurement Standard
SAE
Package Quantity
800
Primary Use
Attaching Durock, Wonderboard, and other glass-mesh cement board to wood or light gauge steel
Product Weight (lb.)
.006lb
Returnable
90-Day
Self drilling
Yes
Self tapping
Yes
Size
#9
Tamper Resistant
No

Warranty / Certifications

Manufacturer Warranty
ITW Brands warrants that this product is free from defects in material and workmanship and that it will not rust or corrode. ITW Brands' sole liability for any breach of this warranty shall be to replace this product or refund the purchase price.

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Customer Questions & Answers

Should this screw be used to attach hardy plank trim to 2X8 Facia Board?

Should this screw be used to attach hardy plank trim to 2X8 Facia Board?
Asked by: Novice4
Yes, our CBS screws can be used to fasten cement board to Oak Facia board. If you have additional questions, please call Customer Service at 877-489-2726 from 8:00 - 5:00 CT Monday - Friday.
Answered by: Paslode
Date published: 2017-02-01

how many screws should you use in each concrete board

Asked by: John
To securely fasten cement board, it is recommended to use at least 30 screws of the 1-1/4” length. If you need more information, please contact Customer Service at 877-489-2726 from 8:00 - 5:00 CT Monday - Friday.
Answered by: Paslode
Date published: 2017-07-04

Is this screw used to fasten to the floor. Or is there any type of glue to be used.

Asked by: Tallman
Yes use it to fasten to floor . You don't need anything else to hold it down, but many prefer to also use thinset mortar to help fill out the gaps and reduce any waviness
Answered by: BrooklynJeff
Date published: 2016-06-27

Can I just use this screw to fasen something to drywall

Asked by: butt
No, this screw is not ideal for drywall application.
Answered by: CommunityAnswer
Date published: 2016-02-13
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Customer Reviews

#9 x 1-1/4 in. Phillips High Low Threaded Wafer-Head Cement Board Screws (800-Pack) is rated 3.4 out of 5 by 12.
Rated 5 out of 5 by from I needed a larger quantity which was cheaper in bulk... I needed a larger quantity which was cheaper in bulk but not sold in stores
Date published: 2017-05-16
Rated 5 out of 5 by from Previous reviews and this product. I've been using these screws on CEMENT BOARD and they work just great. Hardiebacker is a different type of material. You should use the product on the material it is designed for before you start saying its a back product. Seems like operator error led to your bad experiences.
Date published: 2013-11-01
Rated 3 out of 5 by from Inconsistant Used with Durock backer board and steel studs for an outdoor kitchen. Some screws would not self drill into the steel. Most penetrated the steel with ease. The backer board has to be held tight against the studs or will push out the backer board and elongate the holes.
Date published: 2016-08-02
Rated 5 out of 5 by from Why is this so confusing? Why are people using ROCK-ON screws for Hardibacker? They should be using BACKER-ON screws. These particular screws are meant for Wonderboard. These people call themselves "Pros"?? Sounds like they need a bit of re-education. I've been using these screws for over 10 years with no problems.
Date published: 2014-08-19
Rated 5 out of 5 by from Novice complaints These screws work just fine for ANY type of cement board, Wonder Board, Perma Base, Durock & Hardi-Board. People complaining don't know what they are doing. Who cares if the heads are up by 1/32 or even 1/16 of an inch in Hardi Board? If you know how to set tile like I've been doing for 20 years that little bit does nothing with the correct amount of thin set under the tiles. The other screws sold that claim to be specifically for Hardi-Board work about the same just have a recessed square head instead of Philips. The Hardi version screws don't sit flush either because the product is just too hard. Lumber yards sell the same screws by a different brand in a box that reads "Cement Board" for pros to use on all products. The difference between both screws this company sells is null and they are different just to help steer amateurs in the right direction.
Date published: 2015-11-08
Rated 1 out of 5 by from Don't waste your money Most of the screws strip out when setting and don't recess into the board. The Phillips tip slips on the screw and strips it. I tried another tip and the screw dulled the tip. I've been doing home improvement for 30 years, not a rookie. I tried a 2.5 inch wood screw and it drove in perfectly. The screw head has a bad design and the tip slips once it hits resistance, thus stripping the head.
Date published: 2016-03-03
Rated 4 out of 5 by from Worked exactly as marketed Purchased a bucket of screws and it behaved as such.
Date published: 2016-07-19
Rated 5 out of 5 by from Get these! These are much better and easier to use than the name brand the goes with the sheet rock.
Date published: 2013-08-13
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