About UsShippingReturns+1 (631) 946-3827
Shop all BACKER-ON

Backer-On No. 9 X 1-1/4 in. L Star Flat Head Serrated Cement Board Screws

In stockFREE Shipping over $9930-day returns

Backer-On Rock-On Cement Board Screws are designed for attaching HardieBacker or equivalent fiber cement backerboard to wood or light gauge steel studs. Backer-On Rock-On cement board screws comply with ANSI standards for cement board installation as specified by cement board manufacturers. Backer-On Rock-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. This product is engineered for dependable performance, ease of installation, and long-term durability in demanding applications.

$47.99

Easy 30-Day Returns

Save up to 5% when you buy more

Buying Bulk?

Get custom pricing on larger orders

Shop With Confidence

  • Quick
    Shipping

  • Free Shipping
    over $99

  • Easy 30-Day
    Returns

  • Family-Owned
    Business

You May Also Like

Backer-On Rock-On Cement Board Screws are designed for attaching HardieBacker or equivalent fiber cement backerboard to wood or light gauge steel studs. Backer-On Rock-On cement board screws comply with ANSI standards for cement board installation as specified by cement board manufacturers. Backer-On Rock-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. This product is engineered for dependable performance, ease of installation, and long-term durability in demanding applications.

Manufacturer Part No.23505
BrandBacker-On
Product TypeCement Board Screws
MaterialSteel
ColorGreen
Package Quantity750 cement board screws
Gauge9
FinishPhosphate
Length1-1/4
Diameter.177
Head TypeFlat
ApplicationMulti-Purpose
Drive StyleStar
Thread TypeSerrated
Callout SizeNo. 9
Packaging TypePro Pack
Indoor or OutdoorIndoor
Shipping Weight (complete pack)4.66 lb
Package Dimensions (complete pack)5.90 × 4.80 × 5.25 in
FeaturesSelf Tapping · Driver Bit Included