The Simpson 5-1/8 x 6 Column Cap with SDS Screws is a heavy-duty structural connector designed to create strong, load-distributing column-to-beam connections in wood post-and-beam construction. Built by Simpson and made in the United States, this column cap features an extended bearing seat that reaches beyond each side of the column, spreading beam loads over a greater surface area for enhanced structural support. It arrives with 1/4 in. x 2-1/2 in. Strong-Drive SDS Heavy-Duty Connector screws included, enabling a faster, lower-profile installation compared to traditional through-bolt methods.

Key Features

• Extended Bearing Seat - The seat projects beyond each side of the column to distribute beam loads more effectively, reducing stress concentrations at the connection point and providing more reliable support in demanding post-and-beam applications.
• Strong-Drive SDS Heavy-Duty Connector Screws Included - Fasteners are included with the cap, attaching to a greater net section area of the column than a standard bolt connection allows, which strengthens the overall connection without requiring through-bolt drilling.
• Low-Profile Fastener Connection - SDS screw installation keeps hardware flush and unobtrusive, making this column cap well-suited for applications where a clean, low-profile finish is preferred over exposed bolt hardware.
• Hot Dip Galvanized Finish - The HDG coating provides corrosion resistance suitable for exterior and high-exposure environments, including structures in seismic or high-wind zones.
• 3 Gauge Steel Construction - Heavy-gauge steel delivers the structural integrity required for both residential and commercial post-and-beam framing systems.
• Field-Welding Compatible - The column cap only (no straps) can be ordered for field-welding to pipe or other column types, expanding its versatility beyond standard wood-to-wood connections.

Why This Product

• Faster Installation Without Sacrificing Strength - Because Strong-Drive SDS Heavy-Duty Connector screws are included and require no through-bolt drilling, this cap significantly simplifies the installation process while connecting to a greater net section area of the column than bolted alternatives typically achieve.
• Designed for High-Demand Structural Environments - The extended bearing seat and heavy-gauge construction make this column cap a practical choice for seismic zones, high-wind regions, and commercial post-and-beam framing where connection integrity is critical.
• Corrosion Resistance for Long-Term Performance - The Hot Dip Galvanized finish protects the connector in outdoor and high-exposure conditions, supporting a longer service life in applications where untreated steel would be vulnerable.
• Versatile Application Range - Approved for wood column-to-beam connections in both residential and commercial construction, and adaptable for field-welded installations, this cap covers a broad range of structural framing needs from a single, purpose-built connector.

Specifications

• Model Number: CCQ5-6SDS2.5HDG
• Size: 5-1/8" x Beam, 6x Post
• Thickness: 3 Gauge
• Finish: Hot Dip Galvanized (HDG)
• Beam Width: 5-1/8 in.
• Width 1: 5-1/4 in.
• Width 2: 5-1/2 in.
• Length 1: 11 in.
• Height 1: 7 in.
• Country of Origin: United States

Approved Applications

• Wood column-to-beam connections in residential and commercial construction
• Post-and-beam framing systems requiring strong, load-distributing connections
• Structures in seismic or high-wind zones requiring increased uplift capacity
• Applications where a low-profile fastener connection is preferred over through-bolt installations
• Field-welded applications: the CCOQ column cap only (no straps) may be ordered for field-welding to pipe or other columns - dimensions are the same as the CCQ
• ECCOQ - End Column Cap, Legs Omitted, Quick-Install

What's Included

• Simpson CCQ5-6SDS2.5HDG Column Cap
• 1/4" x 2-1/2" Strong-Drive SDS Heavy-Duty Connector screws (provided with the column cap)

Related Products

• - Column Cap Only, Quick-Install (for field-welding applications)

Options

• Contact us for Configurable Options and Special orders

Frequently Asked Questions

What type of fasteners does this column cap use, and why does it matter?

This column cap uses Strong-Drive SDS Heavy-Duty Connector screws rather than standard through bolts. SDS screws provide a lower profile than traditional bolts, which simplifies installation. They also attach to a greater net section area of the column than a bolt attachment normally allows, resulting in superior holding strength for demanding structural applications.

Is this column cap suitable for use in areas prone to high winds or seismic activity?

Yes. Uplift loads have been increased for earthquake or wind loading, making this cap suitable for high-demand seismic and wind zones where enhanced connection performance is required.

Can this column cap be used with treated lumber or in exposed outdoor conditions?

Yes. The CCQ5-6SDS2.5HDG features a Hot Dip Galvanized (HDG) finish, which provides corrosion resistance suitable for both exposed and treated-lumber applications.

What is the purpose of the extended bearing seat on this column cap?

The seat of the column cap extends beyond each side of the column to distribute the load from the beam more effectively across a greater surface area, providing enhanced support for the column-beam connection.