The Simpson HUC68Z HUC ZMAX Galvanized Face-Mount Concealed-Flange Joist Hanger for 6x8 is a heavy-duty structural connector from Simpson engineered for projects demanding additional strength and safety factors. Its face-mount design secures 6x8 wood joists to wood, masonry, and concrete headers, while concealed header flanges keep connections visually clean in exposed framing conditions. ZMAX galvanization delivers enhanced corrosion resistance beyond standard galvanized coatings, making this hanger a dependable choice for exterior structures and assemblies built with pressure-treated lumber.

Key Features

• Concealed header flanges - hide the hanger flanges behind the header for cleaner, more finished visible lines in exposed or architectural framing applications
• ZMAX galvanized coating - provides extra corrosion resistance compared to standard galvanization, so the hanger holds up in exterior conditions and alongside pressure-treated wood without premature degradation
• 14-gauge steel construction - delivers the heavy-duty strength and load capacity needed where additional structural safety factors are required
• Extra optional triangle holes - allow additional fasteners to be added when higher load transfer is needed, giving installers flexibility to meet elevated load requirements
• Compatible with wood, masonry, and concrete headers - supports a wide range of framing applications without requiring separate hardware for different substrate types
• Tested, load rated, and code compliant - the HUC-series meets recognized standards, giving builders confidence that the connection meets structural and inspection requirements
• 5-1/2 in. seat width for a nominal 6x8 joist - ensures a precise, secure fit that eliminates guesswork and supports proper load distribution at the seat

Why This Product

• Built for demanding structural applications - designed specifically for projects requiring additional strength and safety factors, this heavy face-mount hanger is suited for load-critical connections where standard hangers fall short
• Aesthetics meet performance in exposed framing - concealed flanges tuck out of sight against the header, so structural connections in visible areas look intentional and clean without sacrificing load capacity
• ZMAX protection for long-term durability - the elevated corrosion resistance of the ZMAX finish makes this hanger a sound investment for exterior decks, pergolas, and any assembly where moisture or treated-wood chemicals would compromise a lesser coating
• Versatile fastener options keep installation straightforward - compatible with both standard nails and Strong-Drive SD Connector screws, the HUC68Z works with the fastening method already on the job site, reducing the need for specialized tools or hardware

Specifications

• MPN: HUC68Z
• Member Size: 6x8
• Height: 5-13/16 in.
• Width: 5-1/2 in.
• Seat Depth: 2-1/2 in.
• Material Gauge: 14-gauge steel
• Finish: ZMAX
• Coating: ZMAX
• Mount Type: Face-Mount
• Flange Style: Concealed
• Country of Origin: United States
• Install With: (10-14) 0.162 in. x 3-1/2 in. nails in the header and (4-6) 0.162 in. x 3-1/2 in. nails in the joist OR (20) #10 x 1-1/2 in. Strong-Drive SD Connector screws (sold separately)

Approved Applications

• Connecting wood joists to wood headers and beams
• Connecting wood joists to masonry surfaces
• Connecting wood joists to concrete surfaces
• Exterior structural applications requiring corrosion resistance
• Framing with pressure-treated lumber
• Exposed framing conditions where concealed flanges provide cleaner aesthetics

Options

• Contact us for Configurable Options and Special orders

Frequently Asked Questions

What is the nominal joist size this hanger is designed for?

This hanger is designed for a nominal joist size of 6x8, with a seat width of 5-1/2 in.

What makes the ZMAX coating different from standard galvanization?

ZMAX galvanization offers extra corrosion resistance compared to standard galvanized coatings, making the HUC68Z particularly suitable for exterior applications and use with pressure-treated wood where exposure to moisture and chemicals is a concern.

What fasteners are recommended for installing the HUC68Z?

The HUC68Z can be installed using (10-14) 0.162 in. x 3-1/2 in. nails in the header and (4-6) 0.162 in. x 3-1/2 in. nails in the joist, or alternatively with (20) #10 x 1-1/2 in. Strong-Drive SD Connector screws.

What is the purpose of the optional triangle holes on the HUC68Z?

The extra optional triangle holes are provided to allow for additional fasteners, which can increase the load capacity of the connection when greater structural strength is required.

Note: Product dimensions and/or nail holes may differ from picture. Please see item description and Spec Sheet for specifications.