The Simpson ECCQ3-6SDS2.5HDG is a Hot-Dip Galvanized End Column Cap engineered by Simpson Strong-Tie to deliver strong, reliable column-to-beam connections in end-of-beam applications in wood construction. The extended seat design provides additional bearing surface area beyond the side of the column, helping to distribute load from the beam and provide greater support at the connection point. Built from 7-gauge steel and finished with hot-dip galvanization, this end column cap is well suited for exterior structural environments and treated-wood construction where enhanced corrosion resistance is essential. Strong-Drive SDS Heavy-Duty Connector screws are used for installation, enabling fast assembly while attaching to a greater net section area of the column than a standard bolt attachment normally entails.

Key Features

• Strong-Drive SDS screws included - all 28 required 1/4 in. x 2-1/2 in. SDS Heavy-Duty Connector screws (Model: SDS25212) come in the box, so installation can begin immediately without sourcing separate fasteners
• Low-profile SDS screw fastening - SDS screws sit lower than standard through bolts, resulting in a cleaner finished appearance and reduced interference with adjacent framing members
• Certified welds - weld certification provides verified confidence in the strength and load capacity of the connection, reducing uncertainty on structural projects
• Increased uplift load ratings - uplift values have been raised to accommodate earthquake and wind loading demands, making this cap appropriate for high-load or code-sensitive applications
• Extended seat bearing surface - the seat extends beyond the side of the column to distribute beam loads more effectively, reducing point stress at the connection
• Diamond holes for temporary fastening - allows the cap to be held in position during layout and alignment before final fastening, improving installation accuracy
• Hot-dip galvanized finish - HDG coating delivers extra corrosion resistance for exterior use and compatibility with treated-wood lumber, extending the service life of the connection
• 7-gauge steel construction - heavy-gauge steel provides the structural rigidity needed to handle demanding column-to-beam load transfer in wood framing applications

Why This Product

• Everything needed for installation is included - the column cap ships with all 28 required Strong-Drive SDS screws, eliminating a separate trip to source compatible fasteners and keeping projects on schedule
• Built for exterior and treated-wood environments - the hot-dip galvanized coating provides a higher level of corrosion protection than standard zinc plating, making this cap a dependable choice for outdoor post-and-beam structures exposed to moisture or preservative-treated lumber
• Engineered for wind and seismic demands - with increased uplift load ratings and certified welds, this end column cap is suited for structures in regions subject to earthquake or high-wind loading where connection integrity is critical
• Simplifies the connection without sacrificing strength - by generally eliminating the need for additional brackets or braces and using low-profile SDS fasteners in place of through bolts, the ECCQ streamlines the end-of-beam connection while maintaining strong, load-bearing performance

Specifications

• Model Number: ECCQ3-6SDS2.5HDG
• Beam Width: 3-1/8 in.
• Nominal Post Size: 6x
• Member Size: 3-1/8 in. beam, 6x post
• Material: 7-Gauge Steel
• Gauge: 7
• Finish / Coating: Hot-Dip Galvanized (HDG)
• Country of Origin: United States

Approved Applications

• End-of-beam column-to-beam connections in wood construction
• Exterior structural applications requiring enhanced corrosion resistance
• Treated-wood construction environments
• Applications subject to earthquake or wind loading where increased uplift capacity is required
• Projects requiring a low-profile fastener solution in place of standard through bolts

What's Included

• 1x Simpson Strong-Tie ECCQ3-6SDS2.5HDG End Column Cap
• Includes (28) 1/4 in. x 2-1/2 in. Strong-Drive SDS Heavy-Duty Connector screws (Model: SDS25212)

Install with (28) 1/4 in. x 2-1/2 in. Strong-Drive SDS Heavy-Duty Connector screws (Model: SDS25212 - included).

Options

• Contact us for Configurable Options and Special orders