The Simpson Strong-Tie ECCQ5-4SDS2.5 is an ECCQ End Column Cap engineered to deliver a high-capacity connection for column-beam combinations in end-of-beam wood construction applications. Designed for use with a 5-1/8 in. beam and a 4x post, this end column cap features a seat that provides an additional surface area of bearing extending beyond the side of the column, helping to distribute load from the beam and support the overall connection. Constructed from 7-gauge steel with a Simpson Strong-Tie gray paint finish, the ECCQ5-4SDS2.5 is manufactured to the highest quality standards and engineered and tested to perform - making it the trusted choice of engineers and contractors. Included Strong-Drive SDS Heavy-Duty Connector screws enable fast installation while preserving a greater net section area of the column compared to traditional bolt attachments.

Key Features

• Designed to provide a high-capacity connection for column-beam combinations in end-of-beam applications
• Uses Simpson Strong-Tie Strong-Drive SDS screws for faster installation and a greater net section area of the column compared to bolts
• SDS screws provide a lower profile compared to standard through bolts
• Column cap seat provides an extended bearing surface that distributes load from the beam beyond the side of the column
• Certified welds for confidence in strength and loading
• Uplift loads increased for earthquake or wind loading
• Diamond holes for temporary fastening
• Made from 7-gauge steel for durability and strength
• Simpson Strong-Tie gray paint finish for a clean, consistent appearance
• Manufactured in the United States

Specifications

• Model Number: ECCQ5-4SDS2.5
• Beam Width: 5-1/8 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.