The Simpson CBSDQ214S #10 x 2-1/4 in. Collated Sheathing-to-CFS Screw is a purpose-built fastener from Simpson designed to securely attach wood sheathing and other sheathing materials to cold-formed steel (CFS) framing. Its self-drilling point drives into materials easily without predrilling, while the curved-collated design makes it fully compatible with the Quik Drive auto-feed screw driving system for faster, more ergonomic installation on high-volume sheathing and siding projects. Finished with Quik Guard coating, these screws are built for demanding job-site conditions including applications involving pressure-treated lumber.

Key Features

• Ribbed flat head with nibs - countersinks flush to the surface automatically, delivering a clean, professional finish without additional work
• #2 undersized square drive - reduces cam-out and maintains positive bit engagement, keeping installation fast and consistent across all 1,000 screws
• Drill point with wings - the wings prevent jacking (the tendency of two materials to separate during fastening), ensuring tight, gap-free connections between sheathing and CFS
• Curved collation - enables direct use with the Simpson Quik Drive PRO250G2 or PRO300SG2 auto-feed systems, significantly improving speed, efficiency, and ergonomics when driving large quantities of fasteners
• Quik Guard coating - provides corrosion resistance equivalent to hot-dip galvanization (ASTM A153, Class D) in some exposures and is approved for use with pressure-treated lumber, extending fastener service life in challenging environments
• Code-listed for structural applications - CBSDQ screws may be used as prescribed by the codes for shearwalls and diaphragms as described in AISI S240, S400 and S213, giving engineers and installers confidence in code-compliant assemblies
• Driver bit included - a BIT2SU replacement bit is included in each box, so work can begin immediately without sourcing additional accessories

Why This Product

• Built for high-volume CFS sheathing work - the curved-collated format and Quik Drive compatibility eliminate the need to hand-load individual screws, dramatically cutting installation time on sheathing, siding, and diaphragm projects
• Corrosion protection matched to tough exposure conditions - Quik Guard coating meets the corrosion-resistance standard of hot-dip galvanization (ASTM A153, Class D) in some exposures, making these screws a reliable choice for pressure-treated lumber applications and exterior assemblies
• Precision-engineered for tight, flush connections - the drill point with wings prevents jacking between layers while the ribbed flat head with nibs countersinks automatically, reducing touch-up labor and producing consistent, surface-ready results
• Code compliance built in - approved for use in shearwalls and diaphragms per AISI S240, S400 and S213, these screws support structural cold-formed steel assemblies where verified fastener performance is required

Specifications

• Model Number: CBSDQ214S
• Screw Size: #10
• Length: 2-1/4 in.
• Head Type: Ribbed Flat Head
• Head Diameter: 0.322 in.
• Drive Type: #2 Square, Undersized
• Point Type: Drill Point with Wings
• TPI: 16
• Collation Type: Curved
• Coating / Finish: Quik Guard Coating
• Compatible Tools: Simpson Strong-Tie Quik Drive PRO250G2 or PRO300SG2 auto-feed screw driving systems and attachment
• Quantity: 1,000 per package

Approved Applications

• Fastening Wood to Steel - Sheathing

What's Included

• 1,000 CBSDQ214S collated sheathing-to-CFS screws
• Driver bit BIT2SU

Frequently Asked Questions

What type of screw driving system is required to use the CBSDQ214S?

The CBSDQ214S is curved-collated and designed for use with the Simpson Strong-Tie Quik Drive PRO250G2 or PRO300SG2 auto-feed screw driving systems and attachment. Using a compatible Quik Drive system improves speed, efficiency, and ergonomics when driving multiple fasteners in succession.

What drive bit does the CBSDQ214S use, and is one included?

The CBSDQ214S uses a #2 undersized square drive bit. A driver bit (BIT2SU) is included in each box. If a replacement is needed, the compatible replacement bit is the BIT2SU.

Is the CBSDQ214S suitable for use with pressure-treated lumber?

Yes. The CBSDQ214S features Quik Guard coating, which makes it suitable for use with pressure-treated lumber. The coating provides a level of corrosion resistance equivalent to hot-dip galvanization (ASTM A153, Class D) in some exposures.

Are CBSDQ screws approved for use in shearwall and diaphragm applications?

Yes. CBSDQ screws may be used as prescribed by the codes for shearwalls and diaphragms as described in AISI S240, S400 and S213, making them a code-compliant choice for cold-formed steel framing assemblies.

Note: Product dimensions and/or thread length may differ from picture.