The Simpson ECCQ44-SDS2.5HDG End Column Cap is a heavy-duty hot-dip galvanized connector engineered by Simpson to deliver strong, reliable column-to-beam connections in end-of-beam applications for wood construction. The extended bearing seat distributes load from the beam beyond the side of the column, providing added structural support at the connection point. Included Strong-Drive SDS Heavy-Duty Connector screws enable fast installation and engage a greater net section area of the column than standard bolt attachments, making this connector a complete, ready-to-install solution for demanding structural applications.

Key Features

• Strong-Drive SDS screws included - 28 screws come in the box, so installation is ready to begin without sourcing separate fasteners
• SDS screws provide a lower profile than standard through bolts - results in a cleaner, less obtrusive connection without the need to drill through-bolt holes
• Certified welds - provide verified strength and load confidence for structural peace of mind
• Uplift loads increased for earthquake or wind loading - designed to perform in high-demand seismic and wind-event conditions where uplift forces are a concern
• Diamond holes for temporary fastening - allow the connector to be held in position during installation before final fastening, simplifying the process
• Made from 7-gauge steel - heavy material thickness delivers the rigidity and load capacity needed for structural post-and-beam connections
• Hot-dip galvanized finish - offers enhanced corrosion resistance suited to exterior environments and applications involving pressure-treated lumber

Why This Product

• End-of-beam design with extended bearing seat - the ECCQ seat extends beyond the side of the column to help distribute beam loads more effectively, addressing a structural challenge that standard caps often leave unresolved
• SDS screws attach to a greater net section area of the column - compared to conventional bolt attachments, this means a stronger connection using the fasteners already included with the connector
• Hot-dip galvanization for long-term durability - the HDG coating is specifically suited for exterior decks, pergolas, and framing where treated wood or moisture exposure would accelerate corrosion on lesser-finished connectors
• Complete package for 4x post and 4x beam applications - sized and certified for nominal 4x post and 4x beam connections, generally eliminating the need for additional brackets or braces at the column cap location

Specifications

• MPN: ECCQ44-SDS2.5HDG
• Brand: Simpson Strong-Tie
• Member Size: 4x beam, 4x post
• Beam Width (in.): 3-1/2
• Dimensions W1 (in.): 3-5/8
• Dimensions W2 (in.): 3-5/8
• Dimensions L (in.): 8-1/2
• Dimensions H (in.): 7
• Material: 7-Gauge Steel
• Coating/Finish: Hot-Dip Galvanized (HDG)
• Install With: (28) 1/4 in. x 2-1/2 in. Strong-Drive SDS Heavy-Duty Connector screws (Model: SDS25212, included)
• Country of Origin: United States

What's Included

Each pack contains (1) ECCQ44-SDS2.5HDG Beam, 4x Post End Column Cap, (28) 1/4 in. x 2-1/2 in. Strong-Drive SDS Heavy-Duty Connector screws.

Options

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

Downloads and Resources

• View Specifications

Frequently Asked Questions

What type of fasteners are used with the ECCQ44-SDS2.5HDG, and are they included?

This column cap installs using 1/4 in. x 2-1/2 in. Strong-Drive SDS Heavy-Duty Connector screws (Model: SDS25212). A full set of 28 screws - 14 for the beam and 14 for the post - is included with the connector.

Why are SDS screws preferred over standard through bolts for this connector?

The Strong-Drive SDS 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 without the need for drilling through-bolt holes.

Is the ECCQ44-SDS2.5HDG suitable for exterior or treated-wood applications?

Yes. The hot-dip galvanized (HDG) finish provides enhanced corrosion resistance, making this column cap well suited for exterior environments and applications involving treated lumber.

Does this column cap offer any resistance to earthquake or wind uplift forces?

Yes. The ECCQ44-SDS2.5HDG features increased uplift load ratings specifically to address the demands of earthquake and wind loading conditions, providing added confidence in high-load structural applications.

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