The Simpson Strong-Tie CCO6 Column Cap (No Legs) for 6x Beam is built to create strong, dependable column-to-beam connections on top of steel columns and posts. Its no-legs design allows for field-welded attachment directly to steel columns, giving structural teams the flexibility to make secure connections on site. The seat of the cap extends beyond each side of the column, providing additional bearing surface area that distributes beam loads more effectively and reinforces the overall connection for lasting structural performance.

Key Features

• Uplift loads increased for earthquake or wind loading - enhances resistance to lateral and uplift forces, making this cap suited for structures in seismically active or high-wind regions
• Bolt spacing that meets NDS code requirements - ensures the connection performs to code-compliant standards, reducing the need for field modifications or engineering re-review
• Diamond holes for temporary fastening - allow the cap to be held in position during installation before final fastening, improving accuracy and reducing the chance of misalignment
• Fits nominal 6x beams with widths of 5-1/4 in. or 5-1/2 in. - accommodates both standard and engineered lumber dimensions commonly used in heavy-timber framing
• Made from 7-gauge uncoated steel - delivers the structural thickness needed for demanding load-bearing applications where a field weld or bolted connection must hold under significant stress
• Installed with (4) 5/8 in. diameter machine bolts - a clearly defined fastener requirement that simplifies procurement and keeps the installation process straightforward

Why This Product

• Field-weld flexibility for real-world job sites - the no-legs design means this column cap can be welded directly to steel columns, pipe, or other column types on site, adapting to the actual conditions of the project rather than requiring precision pre-fabrication
• Extended bearing seat for better load distribution - the seat surface reaches beyond each side of the column, spreading beam loads across a wider area and reducing concentrated stress at the connection point
• Engineered for high-demand structural environments - with uplift load values elevated to account for earthquake and wind forces, this cap is a dependable choice for beam-column connections in regions subject to severe weather or seismic activity
• Consistent, code-aligned performance - NDS-compliant bolt spacing and clear fastener requirements mean less guesswork during installation and greater confidence that the connection will meet structural review standards

Specifications

• MPN: CCO6
• Brand: Simpson Strong-Tie
• Member Size: 6x, 5-1/4 in., 5-1/2 in.
• Width 1: 5-1/2 in.
• Length: 11 in.
• Height 1: 6-1/2 in.
• Cap Height: 6-1/2 in.
• Gauge: 7
• Finish: Uncoated Steel
• Coating: None
• Install With: (4) 5/8 in. diameter machine bolts (sold separately)
• Country of Origin: United States

Options

• Contact us for Configurable Options and Special orders
• For special, custom or rough-cut lumber sizes, provide dimensions.
• CCO may be ordered for field welding to pipe or other columns. Weld by designer.
• See CCO Column Cap Load Table. See Table
• See CCO Column Product Guide.

Installation

• Use all specified fasteners; see General Notes
• Weld by designer
• Bolt holes shall be a minimum of 1/32" to a maximum of 1/16" larger than the bolt diameter (per 2018 NDS, section 12.1.3.2); bolt holes should be drilled from one side all the way through the beam to maintain hole tolerances
• Contact engineered wood manufacturers for connections that are not through the wide face

Downloads and Resources

• See CCO Column Product Guide. See SPECS
• See CCO Column Cap Load Table. See Table

Frequently Asked Questions

What beam sizes is the CCO6 compatible with?

The CCO6 is designed for use with nominal 6x beams, specifically accommodating beam widths of 5-1/4 in. and 5-1/2 in.

How is the CCO6 attached to a steel column or post?

The CCO6 features a no-legs design that allows for field-welded attachment directly to steel columns and posts. It may also be ordered for field welding to pipe or other columns, with welding performed by the designer.

What fasteners are required to install the CCO6?

Installation of the CCO6 requires four (4) 5/8 in. diameter machine bolts. All specified fasteners should be used per the General Notes guidelines.

Is the CCO6 suitable for high-wind or seismic applications?

Yes. The CCO6 is engineered with increased uplift load capacity to meet the demands of earthquake and wind loading conditions, making it appropriate for use in seismic and high-wind environments.

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