The Simpson ECCQ5-4SDS2.5 End Column Cap is engineered by Simpson Strong-Tie to deliver a high-capacity connection for column-beam combinations in end-of-beam wood construction applications. Sized for a 5-1/8 in. beam and a 4x post, this end column cap is built from heavy-duty 7-gauge steel and finished with Simpson Strong-Tie gray paint for lasting durability. Included 1/4 in. x 2-1/2 in. Strong-Drive SDS Heavy-Duty Connector screws make installation faster and more straightforward compared to traditional bolt-based fastening, while preserving a greater net section area of the column - a meaningful advantage on structural projects where performance and code compliance matter.

Key Features

• Strong-Drive SDS screw fastening - provides faster installation than traditional bolt methods while preserving a greater net section area of the column, reducing weakening at the connection point
• Low-profile SDS screw design - minimizes protrusion compared to standard through bolts, resulting in a cleaner finished appearance and reduced interference with adjacent framing
• 7-gauge steel construction - delivers the structural strength needed for high-capacity column-to-beam load transfer in demanding wood framing applications
• Simpson Strong-Tie gray paint finish - provides a consistent, factory-applied coating that meets the quality standards expected on professional structural installations
• SDS screws included - everything needed for fastening arrives with the connector, so installers can get to work without sourcing separate hardware

Why This Product

• Engineered and tested for structural confidence - Simpson Strong-Tie connectors are engineered and tested to perform, making this end column cap a trusted choice among engineers and contractors for code-compliant structural connections
• SDS screws outperform traditional bolts at the installation stage - the included Strong-Drive SDS screws speed up fastening and leave more wood fiber intact at the post compared to through bolts, supporting a stronger overall column-beam connection
• Purpose-built for end-of-beam applications - the ECCQ design is specifically intended for end-of-beam column-beam combinations, meaning the geometry and load path are optimized for the exact condition where this connector will be used
• American-made quality at a commercial grade - manufactured to Simpson Strong-Tie's highest quality standards, this connector is suited for residential and commercial structural projects where reliability and consistency are non-negotiable

Specifications

• Model Number: ECCQ5-4SDS2.5
• Beam Width: 5-1/8 in.
• Width 2: 3-5/8 in.
• Width 1: 5-1/4 in.
• Height: 7 in.
• Length: 8-1/2 in.
• Compatible Post Size: 4x Post
• Material: 7-Gauge Steel
• Finish / Coating: Simpson Strong-Tie Gray Paint
• Fastener Type: 1/4 in. x 2-1/2 in. Strong-Drive SDS Heavy-Duty Connector Screws
• Country of Origin: United States

Approved Applications

• End-of-beam column-beam connections in wood construction
• Structural connections requiring high-capacity load transfer between beams and columns
• Applications requiring enhanced uplift resistance for earthquake or wind loading
• Projects requiring code-compliant structural connectors engineered for performance and safety

What's Included

• 1x Simpson Strong-Tie ECCQ5-4SDS2.5 End Column Cap
• Includes 1/4 in. x 2-1/2 in. Strong-Drive SDS Heavy-Duty Connector screws

Installation

Fasten with the included 1/4 in. x 2-1/2 in. Strong-Drive SDS Heavy-Duty Connector screws. SDS screws provide fast installation and attach to a greater net section area of the column than standard bolt attachment. The low-profile design of the SDS screws also reduces protrusion compared to standard through bolts.

Options

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

Frequently Asked Questions

What beam and post sizes is the ECCQ5-4SDS2.5 compatible with?

This end column cap is designed for use with a 5-1/8 in. wide beam and a 4x post, making it specifically suited for column-beam combinations in end-of-beam wood construction applications.

What fasteners are required, and are they included?

The ECCQ5-4SDS2.5 installs with 1/4 in. x 2-1/2 in. Strong-Drive SDS Heavy-Duty Connector screws, which are included with the connector. No separate fastener purchase is necessary.

Why are SDS screws used instead of standard through bolts?

Strong-Drive SDS screws provide faster installation than traditional bolts and preserve a greater net section area of the column. They also result in a lower profile compared to standard through bolts, which can be an advantage in tight or finished applications.

What material and finish does this end column cap have?

The ECCQ5-4SDS2.5 is made from 7-gauge steel and features a Simpson Strong-Tie gray paint finish, providing a durable and consistently finished connector that meets the quality standards expected in structural applications.