The Simpson HU310 HU Galvanized Face-Mount Joist Hanger is a heavy-duty structural connector from Simpson built for framing applications where additional strength and safety factors are required. Engineered to face-mount directly to a header and cradle a nominal 3x10 joist, this hanger is constructed from 14-gauge steel with a G90 zinc galvanized coating - making it a go-to choice for engineers and contractors tackling residential framing, deck construction, and structural building projects that demand reliable, code-conscious performance.

Key Features

• "U" design allows for flexibility of placement on the header - installers are not locked into a single fixed position, making it easier to align the hanger precisely during framing without having to reposition the header itself
• Nominal joist size: 3x10 - the hanger is specifically sized to cradle a 3x10 member securely, ensuring a snug, load-transferring fit with no guesswork
• Made from 14-gauge steel - heavy-gauge construction delivers the structural integrity needed for applications requiring additional strength beyond standard light-duty hangers
• Galvanized (G90) for extra corrosion resistance - the zinc galvanized finish helps protect against moisture-related degradation, making this hanger well-suited for covered outdoor structures and other environments where humidity or condensation is a concern

Why This Product

• Engineered and tested by a trusted name in structural connectors - Simpson connectors are manufactured to rigorous quality standards and are the choice of engineers and contractors, giving buyers confidence that this hanger is built to perform in real-world framing conditions
• Heavy-duty construction where standard hangers fall short - the HU series is specifically designed for structures requiring additional strength and safety factors, making the HU310 the right tool when a light-duty connector simply is not enough
• Flexible installation without sacrificing structural integrity - the "U" design gives framers the freedom to adjust hanger placement along the header without compromising the secure connection needed for proper load transfer
• Built for durability in moisture-prone environments - the G90 zinc galvanized coating provides an extra layer of corrosion resistance, helping the connector hold up over time in settings where exposure to moisture is a real concern

Specifications

• Model Number: HU310
• Member Size: 3x10
• Height: 8-7/8 in.
• Width: 2-9/16 in.
• Seat Depth: 2-1/2 in.
• Gauge: 14
• Coating/Finish: Zinc Galvanized, G90
• Country of Origin: United States
• Installation Fasteners: Install with 0.162 in. x 3-1/2 in. nails in the header and 0.148 in. x 1-1/2 in. nails in the joist (sold separately)

Options

• Contact us for Configurable Options and Special orders

Frequently Asked Questions

What size joist is the HU310 designed to support?

The HU310 is designed for a nominal 3x10 joist, making it specifically sized to provide a secure, snug fit for that member dimension.

What type of nails should be used to install the HU310?

Install with 0.162 in. x 3-1/2 in. nails in the header and 0.148 in. x 1-1/2 in. nails in the joist for proper load transfer and code-compliant performance.

Why is the HU310 galvanized, and what does G90 mean?

The HU310 features a G90 zinc galvanized coating, which provides an extra layer of corrosion resistance. The G90 designation indicates a zinc coating weight of 0.90 oz per square foot, making it suitable for environments where moisture exposure is a concern.

What advantage does the "U" design of the HU310 offer?

The "U" design allows for flexibility of placement on the header, giving installers greater versatility when positioning the hanger during framing without being locked into a single fixed location.

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