The Simpson Strong-Tie ECCO4HDG is an end column cap engineered to deliver robust column-to-beam connections in end-of-beam applications on top of steel members. Designed with legs omitted, this column cap is intended for field-welded attachment directly to steel columns and beams, providing a clean, structurally sound connection. The seat of the column cap extends beyond one side of the column, offering additional bearing surface area that effectively distributes load from the beam while providing reliable support throughout the connection. Finished in Hot Dip Galvanizing (HDG) for enhanced corrosion resistance, the ECCO4HDG is constructed from 7-gauge steel and manufactured in the United States.

Key Features

• Legless column cap design enables field-welded attachment to steel columns and beams
• Extended seat provides additional bearing surface area beyond one side of the column, helping to distribute beam load effectively
• Uplift loads increased for earthquake or wind loading applications
• Bolt spacing meets NDS code requirements for optimal structural performance
• Diamond holes provide convenient temporary fastening during installation
• Hot Dip Galvanized (HDG) finish for superior corrosion protection
• Manufactured from heavy-duty 7-gauge steel
• Made in the United States

Specifications

• Model Number: ECCO4HDG
• Beam Width: 3-1/2 in.
• Dimension W1: 3-5/8 in.
• Dimension L: 5-1/2 in.
• Dimension H1: 4 in.
• Material: 7-Gauge Steel
• Finish: Hot Dip Galvanized (HDG)
• Country of Origin: United States

Approved Applications

• End-of-beam column-to-beam connections on top of steel members
• Field-welded connections to steel columns and beams
• Field welding to pipe or other columns (weld by designer)
• Applications requiring increased uplift load resistance for earthquake or wind loading
• Structural connections requiring NDS code-compliant bolt spacing

Installation

• Use all specified fasteners per applicable specifications.
• 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-bolted.

Options

• Contact us for Configurable Options and Special orders
• For special, custom, or rough-cut lumber sizes, provide dimensions.
• ECCO may be ordered for field welding to pipe or other columns. Weld by designer.

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

Frequently Asked Questions

What does "legs omitted" mean for the ECCO4HDG, and how is it installed?

The legs omitted design means this column cap does not have pre-formed legs for nail or bolt attachment to a wood column. Instead, it is intended for field-welded attachment directly to steel columns and beams, making it suitable for applications where the cap must be secured to steel members on-site.

What beam width is the ECCO4HDG designed to accommodate?

The ECCO4HDG is designed to accommodate a beam width of 3-1/2 in. Additional key dimensions include a W1 of 3-5/8 in., a length (L) of 5-1/2 in., and an H1 of 4 in.

Why does the ECCO4HDG feature an extended seat, and what benefit does it provide?

The seat of the ECCO4HDG extends beyond one side of the column, providing additional bearing surface area. This extended seat helps distribute the load from the beam more effectively, resulting in a more reliable structural connection in end-of-beam applications.

What finish and material are used on the ECCO4HDG, and why does that matter for certain environments?

The ECCO4HDG is constructed from heavy-duty 7-gauge steel and finished with Hot Dip Galvanizing (HDG). The HDG finish provides superior corrosion resistance compared to standard coatings, making this column cap well suited for outdoor or moisture-exposed applications where long-term durability is a concern.