The Simpson HUC68SS HUC Stainless-Steel Face-Mount Concealed-Flange Joist Hanger is a heavy-duty structural connector from Simpson, engineered for framing applications that demand elevated strength and safety factors. Its concealed header flanges keep hardware out of sight, delivering cleaner visible lines in exposed framing conditions - whether connecting 6x8 wood joists to wood headers, masonry, or concrete substrates. Fabricated from stainless steel at 14 gauge, this face-mount hanger is purpose-built for exterior environments and pressure-treated lumber applications where long-term corrosion resistance is essential.

Key Features

• Concealed header flanges - hide the hanger hardware in exposed framing for a cleaner, more finished aesthetic without sacrificing structural integrity
• Stainless steel construction at 14 gauge - delivers enhanced corrosion resistance that holds up in exterior conditions and alongside pressure-treated lumber, where standard finishes fall short
• Installs to wood, masonry, and concrete - gives contractors and builders versatility across a wide range of structural substrates without needing a different connector
• Extra optional triangle holes - allow additional fasteners to be driven when higher load capacity is required, adding flexibility for demanding structural situations
• Tested, load rated, and code compliant - the HUC series meets recognized standards, so builders can specify this hanger with confidence on permitted projects
• 5-1/2 in. seat width sized for a nominal 6x8 joist - ensures a precise, snug fit that supports the member correctly and simplifies installation alignment

Why This Product

• Built for conditions where standard hangers fail - stainless steel construction and the requirement for stainless-steel fasteners create a fully corrosion-resistant connection system, making this hanger the appropriate choice for exterior decks, docks, and treated-lumber framing where moisture exposure is a constant concern
• Aesthetic and structural performance in one - the concealed-flange design addresses the real-world need for exposed framing to look as clean as it performs, eliminating visible flanges without reducing load capacity
• Flexible load options built into the hanger - optional triangle holes mean the connection can be reinforced with additional fasteners when project loads demand it, reducing the need to upsize to a different connector entirely
• Broad substrate compatibility reduces jobsite complexity - a single hanger model that installs to wood, masonry, and concrete means fewer SKUs to source and manage when framing involves mixed structural materials

Specifications

• MPN: HUC68SS
• Material: Stainless Steel
• Finish: Stainless Steel
• Gauge: 14
• Nominal Joist Size: 6x8
• Height: 5-13/16 in.
• Width: 5-1/2 in.
• Seat Depth: 2-1/2 in.
• Hanger Type: Face-Mount, Concealed-Flange
• Country of Origin: United States
• Install With: (10-14) 0.162 in. x 3-1/2 in. ring-shank nails in the header and (4-6) 0.162 in. x 3-1/2 in. ring-shank nails in the joist OR (20) #10 x 1-1/2 in. Strong-Drive SD Connector screws; stainless-steel fasteners required (sold separately)

Approved Applications

• Attaching wood joists to wood headers and beams
• Attaching wood joists to masonry substrates
• Attaching wood joists to concrete substrates
• Exterior framing and exposed structural conditions where concealed flanges provide a cleaner aesthetic
• Applications involving pressure-treated lumber requiring enhanced corrosion resistance

Options

• Contact us for Configurable Options and Special orders

Frequently Asked Questions

What size joist is the HUC68SS designed for?

The HUC68SS is designed for a nominal joist size of 6x8, with a seat width of 5-1/2 in. to properly support the member.

Why should stainless-steel fasteners be used with the HUC68SS?

Because the HUC68SS is fabricated from stainless steel for enhanced corrosion resistance, stainless-steel fasteners are required to maintain the same level of protection and ensure compatibility in exterior or treated-wood applications.

What fastener options are approved for installing the HUC68SS?

The HUC68SS can be installed using (10-14) 0.162 in. x 3-1/2 in. ring-shank nails in the header and (4-6) 0.162 in. x 3-1/2 in. ring-shank nails in the joist, or alternatively with (20) #10 x 1-1/2 in. Strong-Drive SD Connector screws. Stainless-steel fasteners are required in both cases.

Are the HUC-series hangers code compliant and load rated?

Yes. HUC-series hangers are tested, load rated and code compliant, providing the documentation and performance data needed for permitted structural applications.

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