The Simpson CC5 1/4-6HDG 5-1/8 in. Beam 6X Post HDG Column Cap is a heavy-duty structural connector from Simpson built to create secure, load-bearing column-to-beam connections in wood frame construction. Purpose-matched for 5-1/8 in. beam widths and 6x posts, this column cap is hot-dip galvanized for lasting durability in demanding structural environments, making it a dependable choice for post-and-beam assemblies, pergolas, covered structures, and projects in high-seismic or high-wind regions.

Key Features

• Hot-dip galvanized finish - provides a heavy-duty corrosion-resistant coating that stands up to moisture and harsh outdoor conditions, extending the service life of the connection without ongoing maintenance.
• Precision fit for 5-1/8 in. beam width and 6x post - ensures correct bearing, alignment, and load transfer right from installation, eliminating guesswork when working with glulam or engineered lumber beams paired with standard 6x posts.
• Load-distributing seat design - extends bearing surface beyond each side of the column, effectively transferring loads from the beam down through the supporting post for a structurally sound, code-conscious connection.
• Certified welds and code-compliant bolt spacing - supports verified uplift load ratings and meets requirements for structural hardware in seismic and high-wind applications, giving builders confidence on inspected projects.
• Made in the United States - reflects consistent manufacturing standards and the quality control that structural contractors and engineers rely on for critical load-path hardware.

Why This Product

• Engineered for a specific structural match - by being purpose-built for 5-1/8 in. beam widths and 6x posts, this column cap eliminates fit uncertainty and supports accurate, reliable connections in engineered lumber and timber applications.
• Built-in corrosion protection - the hot-dip galvanized coating makes this connector well-suited for outdoor structures, exposed framing, and projects where long-term moisture resistance is a priority, reducing the risk of hardware degradation over time.
• Rated for high-demand structural conditions - with increased uplift load ratings and certified welds, this column cap is a practical choice for construction in seismic zones or areas subject to significant wind uplift forces.
• Trusted brand, domestic manufacturing - Simpson has a well-established reputation in structural connectors, and this product is made in the United States, supporting the quality and consistency that structural applications demand.

Specifications

• Model Number: CC5 1/4-6HDG
• Finish: Hot-Dip Galvanized
• Beam Width: 5-1/8 in.
• Height 1: 8-1/8 in.
• Width 1: 5-1/4 in.
• Length: 13 in.
• Width 2: 5-1/2 in.
• Dimension W1: 5-1/4 in.
• Dimension W2: 5-1/2 in.
• Dimension L (Length): 13 in.
• Dimension H1 (Height): 8 in.
• Bolt Size: 3/4 in.
• Country of Origin: United States

Approved Applications

• Column-to-beam connections in wood frame construction
• Structural post-and-beam assemblies requiring certified load-bearing hardware
• Connections in regions subject to high seismic or wind uplift forces
• Applications requiring hot-dip galvanized hardware for enhanced corrosion resistance
• Connections involving 6x posts and 5-1/8" width beams

Options

• Contact us for Configurable Options and Special orders
• Straps may be rotated 90 deg.
• For special, custom, or rough-cut lumber sizes, provide dimensions. An optional W2 dimension may be specified. (The W2 dimension on straps rotated 90 deg. is limited by the W1 dimension.)

Frequently Asked Questions

What beam and post sizes is the CC5 1/4-6HDG designed to fit?

This column cap is specifically designed for use with a 5-1/8" beam width and a 6x post, making it suited for glulam or engineered lumber beams of that dimension paired with standard 6x lumber posts.

Why is hot-dip galvanizing used on this column cap?

Hot-dip galvanizing provides a heavy-duty corrosion-resistant coating, making the CC5 1/4-6HDG suitable for demanding structural applications where long-term durability and resistance to moisture or harsh environments are required.

Is this column cap suitable for high-wind or seismic applications?

Yes. The CC5 1/4-6HDG features increased uplift load ratings specifically designed to meet the demands of earthquake or high-wind loading scenarios, making it appropriate for structurally demanding environments.

Does this column cap meet code requirements for bolt spacing?

Yes. The bolt hole spacing on the CC5 1/4-6HDG meets National Design Specification (NDS) code requirements, ensuring optimal structural performance and compliance in permitted construction projects.