The Simpson CCQ HDG Column Cap for 3-1/8 in. Beam and 4x Post with Strong-Drive SDS Screws by Simpson is engineered to deliver strong, reliable column-to-beam connections in wood construction. The cap's extended seat provides additional bearing surface beyond each side of the column, helping distribute beam loads efficiently while supporting the overall connection. Strong-Drive SDS Heavy-Duty Connector screws enable fast installation and engage a greater net section area of the column compared to standard bolt attachments, making this cap a dependable solution for demanding structural applications in both new builds and renovation projects.

Key Features

• SDS screws provide a lower profile than standard through bolts - results in a cleaner, less obtrusive connection that maintains structural integrity without the bulk of conventional bolt hardware
• Certified welds - gives buyers confidence in the strength and load capacity of every weld on the cap, reducing the guesswork in critical structural connections
• Increased uplift load ratings for earthquake or wind loading - makes this column cap well suited for projects in high-seismic or high-wind regions where elevated uplift performance is required
• Diamond holes for temporary fastening - allows the cap to be held in position during installation before final fastening, simplifying the process and reducing the need for additional help on the job site
• Made from 7-gauge steel - provides heavy-duty structural strength appropriate for load-bearing post-to-beam connections in wood framing
• Hot-dip galvanized finish - offers extra corrosion resistance for exterior applications and use with treated wood, where exposure to moisture and corrosive elements is a constant concern
• Includes 30 Strong-Drive SDS Heavy-Duty Connector screws - everything needed for a complete installation arrives together, eliminating a separate fastener purchase and keeping the project moving

Why This Product

• Built for exterior and treated-wood environments - the hot-dip galvanized coating delivers corrosion resistance that standard coatings cannot match, making this cap a smart choice for decks, pergolas, covered outdoor structures, and any application where treated lumber or outdoor exposure is involved
• Extended bearing seat distributes load more effectively - the seat of the column cap reaches beyond each side of the column, spreading the beam load over a greater surface area and providing a more robust, reliable connection than a basic cap design would allow
• SDS screws engage more wood for a stronger hold - by attaching to a greater net section area of the column than a bolt attachment normally entails, the Strong-Drive SDS screws create a connection that is both faster to install and structurally superior to traditional through-bolt methods
• Designed to meet elevated seismic and wind uplift demands - with uplift loads specifically increased for earthquake or wind loading, this column cap is engineered to perform in the conditions where structural connections are stressed the most

Specifications

• Model Number: CCQ3-4HDG-SDS
• Member Size: 3-1/8 in. beam, 4x post
• Beam Width: 3-1/8 in.
• Width 1: 3-1/4 in.
• Width 2: 3-5/8 in.
• Length 1: 11 in.
• Height 1: 7 in.
• Gauge: 7
• Coating: Hot-Dip Galvanized
• Finish: Hot-Dip Galvanized
• Country of Origin: United States

What's Included

• Includes (30) 1/4 in. x 2-1/2 in. Strong-Drive SDS Heavy-Duty Connector screws (Model: SDS25212)

Options

• Contact us for Configurable Options and Special orders

Frequently Asked Questions

What fasteners are used to install the CCQ3-4HDG-SDS, and are they included?

This column cap is installed with (30) 1/4 in. x 2-1/2 in. Strong-Drive SDS Heavy-Duty Connector screws (Model: SDS25212), which are included with the cap. Note that lag screws will not achieve the same load as the specified SDS screws.

Why is hot-dip galvanization important for this column cap?

Hot-dip galvanization (HDG) provides extra corrosion resistance, making this column cap suitable for exterior applications and use with treated wood where exposure to moisture and corrosive elements is a concern.

How do the SDS screws benefit the connection compared to standard through bolts?

The Strong-Drive SDS Heavy-Duty Connector screws provide a lower profile than standard through bolts and attach to a greater net section area of the column, resulting in a stronger, cleaner connection with faster installation.

Is the CCQ3-4HDG-SDS suitable for use in earthquake or high-wind regions?

Yes. Uplift loads have been increased for earthquake or wind loading, and certified welds provide confidence in strength and loading performance, making this cap well suited for applications in seismic or high-wind environments.

Related Products

• CCOQ - Column Cap Only (no straps), may be ordered for field-welding to pipe or other columns. Dimensions are same as CCQ.
• ECCOQ - End Column Cap Legs Omitted, may be ordered for field-welding to pipe or other columns. Dimensions are same as ECCQ.

Note: Product dimensions and/or screw holes may differ from picture.