Simpson #8 x 2-1/4" Hi-Lo T25 Cement Board Screw (CBHL214R100) is a professional-grade fastening solution from Simpson designed specifically for securing cement backerboard in tile and wet-area installations. This 100-count package delivers reliable, corrosion-resistant performance across all major cement backerboard brands, featuring a distinctive multilayer coating and a high-low thread design engineered for easier, faster driving.

Key Features

• 6-lobe T25 drive provides positive engagement to improve bit life
• High-low thread for easier driving
• Ribbed wafer head with nibs provides a flush finish
• Distinctive multilayer corrosion-resistant coating prevents rust stains
• Coated zinc construction for added durability
• Compatible with all cement backerboards including HardieBacker, Durock, WonderBoard, and PermaBase

Specifications

• Model Number: CBHL214R100
• Screw Size: #8
• Length: 2-1/4 in.
• Head Diameter: 0.38 in.
• Head Type: Wafer Head
• Drive Type: T25 6-Lobe
• Coating Material: Coated Zinc
• Country of Origin: Taiwan

Approved Applications

• Cement board fastening applications
• Securing HardieBacker cement backerboard
• Securing Durock cement backerboard
• Securing WonderBoard cement backerboard
• Securing PermaBase cement backerboard

What's Included

• 100 Simpson #8 x 2-1/4" Hi-Lo T25 Cement Board Screws
• 6-lobe T25 driver bit

Frequently Asked Questions

What types of cement backerboard are these screws compatible with?

These Simpson cement board screws are designed for use with all cement backerboards, including HardieBacker, Durock, WonderBoard, and PermaBase.

What drive type is required to install these screws?

These screws use a T25 6-lobe drive. A replacement driver bit (BIT25T-2-R2) is available separately, and a T25 driver bit is included in the package.

How does the head design help achieve a professional finish?

The ribbed wafer head features nibs that allow the screw to seat flush with the surface of the cement board, providing a clean, professional finish ready for tiling or other finishing work.

What makes these screws resistant to rust and corrosion?

These screws feature a distinctive multilayer corrosion-resistant coating applied over a coated zinc base, which is specifically designed to prevent rust stains even in moisture-prone installation environments.

Note: Product dimensions and/or thread length may differ from picture. Please see the item description above for specifications.