The Simpson BC60Z 6x Post Base with ZMAX Finish is an 18-gauge steel connector engineered to secure the base of a 6x post or column to a wood deck or concrete surface - making it a dependable choice for decks, patio covers, and similar light post base applications. Built by Simpson, this connector's ZMAX galvanized coating delivers enhanced corrosion resistance for exterior environments and installations involving treated lumber, where long-term performance under moisture and chemical exposure is a genuine concern.

Key Features

• Positive post-to-deck connection - mechanically locks the base of a 6x post in place, providing a more reliable hold than relying on friction or gravity alone
• Stronger than angled nailing or screw fastening - gives structural confidence in load-bearing applications where a weaker connection method could compromise the assembly over time
• Reduces the chance of post splitting and eliminates nailing into end grain - protects the integrity of the post itself, helping the overall structure hold up longer with less risk of wood failure at the connection point
• 18-gauge steel construction - provides a solid, rigid base connector suited for light post base applications without unnecessary bulk
• ZMAX galvanized finish - offers extra corrosion resistance beyond standard galvanized coatings, making this connector well matched for exterior use and treated-wood construction where moisture exposure is ongoing
• Designed for nominal 6x post size - ensures a proper, snug fit specific to 6x lumber so there is no guesswork about compatibility before installation
• Not recommended for non top-supported installations such as fences or unbraced carports - knowing this upfront helps buyers select the correct connector for their specific application and avoid installation issues

Why This Product

• A mechanical connection that outperforms traditional fastening methods - rather than relying on angled nails or screws driven into end grain, this post base creates a positive, code-friendly connection that adds real structural strength to deck posts and column bases
• ZMAX coating built for the conditions where this connector will actually live - exterior decks and patio covers expose hardware to rain, humidity, and treated lumber chemicals, and the ZMAX finish is specifically formulated to resist corrosion in exactly those conditions
• Protects the wood as well as the connection - by eliminating end-grain nailing and reducing the risk of post splitting at the base, this connector helps preserve the structural member itself, not just the joint
• Made in the United States by a trusted name in structural connectors - Simpson engineers this product to consistent manufacturing standards, giving contractors and builders a connector they can rely on across light post base applications

Specifications

• Manufacturer: Simpson Strong-Tie
• MPN: BC60Z
• Member Size: 6x
• Width 1: 5-1/2 in.
• Length 1: 5-1/2 in.
• Height 1: 3 in.
• Gauge: 18
• Coating / Finish: ZMAX
• Fasteners Required - Post Flange: (6) 0.162 x 3-1/2" Nails (sold separately)
• Fasteners Required - Base Bottom: (4) 0.162 x 3-1/2" Nails (sold separately)
• Install With: 16d commons or 16d x 2 1/2" joist hanger nails (sold separately)
• Country of Origin: United States

Approved Applications

• Securing posts and columns to concrete for decks and patio covers
• Attaching to existing hardened concrete or wet concrete
• Light post base connection applications
• Exterior and treated-wood environments where corrosion resistance is required

Downloads and Resources

• View Spec Sheet

Frequently Asked Questions

What size post is the BC60Z designed for?

The BC60Z is designed for a nominal 6x post size, providing a secure connection between the base of a 6x post or column and the concrete surface below.

Why is ZMAX galvanization important for this post base?

ZMAX galvanization offers extra corrosion resistance compared to standard galvanized finishes, making the BC60Z especially suitable for exterior applications and installations involving treated lumber, where moisture and chemical exposure can accelerate corrosion.

Can the BC60Z be used for fences or unbraced carports?

No. The BC60Z is not recommended for non top-supported installations such as fences or unbraced carports. Post bases do not provide adequate resistance to prevent members from rotating about the base in those types of applications.

What fasteners should be used to install the BC60Z?

Install with 16d commons or 16d x 2 1/2" joist hanger nails. All specified fasteners must be used: the post flange requires (6) 0.162 x 3-1/2" nails and the base bottom requires (4) 0.162 x 3-1/2" nails. Do not install bolts into pilot holes.