The Simpson 6x6 Column Cap with SDS Screws CCQ66SS-SDS2.5 is a stainless steel connector engineered for reliable column-to-beam connections in wood construction. Designed for use with a 6x post and a 6x beam, this column cap pairs 7-gauge stainless steel construction with Strong-Drive SDS Heavy-Duty Connector screws to deliver a high-strength, low-profile fastening solution built for structural applications where uplift resistance against wind and seismic loading is a priority.

Key Features

• Extended bearing seat design - the seat extends beyond each side of the column, increasing the surface area of load distribution from the beam and providing critical support at the connection point
• 7-gauge stainless steel construction - delivers corrosion resistance and structural integrity suited for demanding environments where long-term durability is essential
• Installs with Strong-Drive SDS Heavy-Duty Connector screws - screws engage a greater net section area of the column than standard bolt attachment, improving load performance without requiring through-bolt drilling
• Certified weld strength and load confidence - gives engineers, contractors, and inspectors a reliable basis for structural load calculations and code compliance
• Approved for wind and seismic uplift applications - meets the performance demands of structural connections requiring increased uplift resistance for earthquake and wind loading scenarios
• Low-profile fastener connection - eliminates the need for through bolts, streamlining installation and maintaining a cleaner finished appearance in exposed structural settings

Why This Product

• Built for high-stakes structural connections - this column cap is specifically approved for applications requiring increased uplift resistance under wind and seismic loading, making it a dependable choice when structural performance cannot be compromised
• Faster, stronger fastening without through bolts - the included Strong-Drive SDS Heavy-Duty Connector screws engage more of the column's net section area than conventional bolt attachment, reducing installation time while maintaining load integrity
• Stainless steel for lasting corrosion resistance - 7-gauge stainless steel construction ensures the connector holds up in environments where standard steel finishes would be vulnerable to deterioration over time
• American-made quality with verified load confidence - backed by certified weld strength ratings, this Simpson connector gives builders and engineers a traceable, code-supportable solution for wood column-to-beam connections

Specifications

• Model Number: CCQ66SS-SDS2.5
• Size: 6x Beam, 6x Post
• Thickness: 7 Gauge
• Finish: Stainless Steel
• Beam Width: 5-1/4 in. or 5-1/2 in.
• Width 1: 5-1/2 in.
• Width 2: 5-1/2 in.
• Length 1: 11 in.
• Height 1: 7 in.
• Country of Origin: United States

Approved Applications

• Column-to-beam connections in wood construction
• Structural applications requiring increased uplift resistance for earthquake loading
• Structural applications requiring increased uplift resistance for wind loading
• Installations where a low-profile fastener connection is preferred over standard through bolts
• Connections requiring certified weld strength and load confidence

What's Included

• 1 x CCQ66SS-SDS2.5 Stainless Steel Column Cap
• 1/4" x 2-1/2" Strong-Drive SDS Heavy-Duty Connector screws (provided with the column cap)

Important Installation Note: Install with 1/4" x 2-1/2" Strong-Drive SDS Heavy-Duty Connector screws, which are provided with the column cap. Lag screws will not achieve the same load.

Options

• Contact us for Configurable Options and Special orders
• The CCOQ and ECCOQ column cap only (no straps) may be ordered for field-welding to pipe or other columns. Dimensions are the same as the CCQ and ECCQ.

Frequently Asked Questions

What size post and beam is this column cap designed for?

The CCQ66SS-SDS2.5 is designed for use with a 6x post and a 6x beam, making it suitable for standard 6x6 column-to-beam connections in wood construction.

What material is this column cap made from, and why does it matter?

This column cap is built from 7-gauge stainless steel, which provides enhanced durability and corrosion resistance. Stainless steel construction makes it well suited for structural applications where long-term performance is critical, including exposure to conditions that might degrade standard steel hardware.

Why are SDS screws used instead of standard through bolts?

Strong-Drive SDS Heavy-Duty Connector screws are used because they engage a greater net section area of the column than standard bolt attachment, resulting in a stronger connection. They also provide a lower profile than through bolts, yielding a cleaner and less obtrusive installation overall.

Is this column cap suitable for high-wind or seismic applications?

Yes. The CCQ66SS-SDS2.5 features enhanced uplift capacity that has been specifically increased to meet the demands of earthquake and wind loading conditions, making it appropriate for use in structural applications where these forces must be addressed.