The Simpson 4X Beam Column Cap, Hot-Dip Galvanized is a heavy-duty structural connector engineered by Simpson to create strong, reliable column-to-beam connections at the top of steel columns and posts. Its legless design allows for field-welded attachment directly to steel or pipe columns, making it a practical choice for demanding structural framing applications where secure load transfer and long-term connection integrity are essential.

Key Features

• Legless design - allows direct field-welded attachment to steel columns and pipe columns, giving designers flexibility in how the cap is secured without relying on pre-fabricated legs that may not suit every column type
• Extended seat design - provides additional bearing surface beyond each side of the column, distributing beam loads more evenly and supporting a more stable connection at the column-to-beam interface
• 7-gauge steel construction - delivers the structural thickness needed to handle heavy column cap loads, making this connector suitable for serious load-bearing framing conditions
• Hot-dip galvanized finish - provides superior corrosion resistance compared to standard coatings, helping the connector hold up in exposed or moisture-prone environments over the long term
• Compatible with 3-1/2 in. beam width - sized to work with standard 4x dimensional lumber framing members, simplifying selection and installation for common structural framing projects
• Made in the United States by Simpson - produced domestically to consistent quality standards, reflecting the manufacturing reliability associated with the Simpson brand

Why This Product

• Versatile field welding capability - the legless column cap design supports field-welded attachment to steel columns, pipe columns, and other column types, giving structural designers and contractors the adaptability they need across a range of post-and-beam framing scenarios
• Built for heavy structural loads - 7-gauge steel construction and an extended seat that distributes bearing loads beyond the column face make this cap a dependable choice when load transfer and connection strength are the top priorities
• Long-term corrosion protection - the hot-dip galvanized finish offers a durable barrier against moisture and environmental exposure, making this column cap a sound investment for structures where longevity and reduced maintenance matter
• Consistent fit for standard 4x framing - with a beam width of 3-1/2 in. and a height of 4 in., this cap aligns with common dimensional lumber sizing, reducing the guesswork during planning and keeping installation straightforward on standard column-to-beam connections

Specifications

• Model Number: CCO4HDG
• Beam Width (in.): 3-1/2
• Length (in.): 7
• Height (in.): 4
• Material Gauge: 7 gauge
• Finish: Hot-Dip Galvanized
• 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

Frequently Asked Questions

What type of columns is the CCO4HDG designed to attach to?

The CCO4HDG is designed for use on top of steel columns and posts. Its legless design allows for field-welded attachment directly to steel columns, and it may also be ordered for field welding to pipe or other column types, with welding performed by the designer.

What beam width is the CCO4HDG compatible with?

The CCO4HDG is sized for a beam width of 3-1/2 inches, which corresponds to standard 4x dimensional lumber framing members.

How does the CCO4HDG help distribute loads from the beam?

The seat of the column cap is designed to extend beyond each side of the column, providing additional surface area for bearing. This wider bearing surface helps distribute the load transferred from the beam and provides solid support for the connection.

Is the CCO4HDG suitable for use in high-wind or seismic conditions?

Yes. The CCO4HDG features increased uplift load capacity specifically for earthquake and wind loading scenarios. Its bolt spacing is also designed to meet NDS code requirements, ensuring reliable performance in demanding structural environments.

Downloads and Resources

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

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