The Simpson Strong-Tie ECCQ5-6SDS2.5HDG is a 5-1/8" beam, 6x post end column cap engineered to deliver strong, reliable column-to-beam connections in end-of-beam wood construction applications. Fabricated from 3-gauge steel with a hot-dip galvanized finish, this heavy-duty connector is built for demanding structural environments where corrosion resistance and load-bearing performance are essential. The extended seat design distributes beam loads across a greater bearing surface area beyond the column face, while the inclusion of Strong-Drive SDS Heavy-Duty Connector screws ensures fast, secure installation with a low-profile fastening solution.

Key Features

• Designed for strong column-to-beam connections in end-of-beam wood construction applications
• Extended seat provides additional bearing surface area beyond the side of the column for improved load distribution
• Constructed from 3-gauge steel for exceptional structural rigidity
• Hot-dip galvanized (HDG) finish for superior corrosion resistance
• Uses Strong-Drive SDS Heavy-Duty Connector screws for fast installation
• SDS screws attach to a greater net section area of the column than standard bolt attachment
• Lower-profile fastening compared to standard through-bolts
• Certified welds for confidence in strength and loading
• Increased uplift load values for earthquake and wind loading conditions
• Diamond holes provided for temporary fastening during installation
• Made in the United States

Specifications

• Model Number: ECCQ5-6SDS2.5HDG
• Beam Width: 5-1/8 in.
• Dimension W1: 5-1/4 in.
• Dimension W2: 5-1/2 in.
• Dimension L: 8-1/2 in.
• Dimension H: 7 in.
• Material: 3-Gauge Steel
• Finish: Hot-Dip Galvanized (HDG)
• Fastener Size: 1/4" x 2-1/2" SDS Heavy-Duty Connector Screws
• Country of Origin: United States

Approved Applications

• End-of-beam column-to-beam connections in wood construction
• Structural applications requiring high uplift resistance due to earthquake loading
• Structural applications requiring high uplift resistance due to wind loading
• Applications where a low-profile fastener connection is preferred over standard through-bolts
• Exposed or high-moisture environments where corrosion resistance is required, due to hot-dip galvanized finish

What's Included

• 1 x ECCQ5-6SDS2.5HDG End Column Cap
• 14 x 1/4" x 2-1/2" Strong-Drive SDS Heavy-Duty Connector Screws (Beam)
• 14 x 1/4" x 2-1/2" Strong-Drive SDS Heavy-Duty Connector Screws (Post)

Installation Notes

Fasten with 1/4" x 2-1/2" Strong-Drive SDS Heavy-Duty Connector screws, which are provided with the column cap. The ECCQ uses SDS screws to attach to a greater net section area of the column than a bolt attachment normally entails, providing a lower profile and faster installation process.

Options

• Contact us for Configurable Options and Special orders
  
• Straps may be rotated 90 deg.
  

Frequently Asked Questions

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

The ECCQ5-6SDS2.5HDG is specifically designed for use with a 5-1/8" beam and a 6x post, making it suitable for end-of-beam wood construction applications requiring a reliable column-to-beam connection at those dimensions.

What type of fasteners does this column cap use, and why are they preferred?

This column cap uses Strong-Drive SDS Heavy-Duty Connector screws, which are included with the product. These screws attach to a greater net section area of the column compared to standard bolt attachment, provide a lower profile than standard through-bolts, and allow for fast, secure installation.

How does the hot-dip galvanized finish benefit this connector?

The hot-dip galvanized (HDG) finish provides superior corrosion resistance, making this connector well suited for demanding structural environments where exposure to moisture or corrosive conditions is a concern.

What design features help with load distribution and installation?

The extended seat design distributes beam loads across a greater bearing surface area beyond the column face for improved load distribution. The connector also features diamond holes to allow for temporary fastening during installation, certified welds for strength confidence, and increased uplift load values suited for earthquake and wind loading conditions.