The Simpson Double-Stud Plate Tie ZMAX is an 18-gauge steel connector designed to securely join double studs to top and bottom plates in light-frame wall construction. Built to handle both sill plate and top plate applications, this versatile strap works equally well for top-track and bottom-track installations, giving framers a single, reliable solution across multiple connection points. The ZMAX galvanized finish delivers enhanced corrosion resistance, making it a dependable choice for exterior environments and assemblies that incorporate treated wood where moisture and chemical exposure are ongoing concerns.

Key Features

• Round-hole fastening pattern for sill plate installation - filling all round holes gives you a fully engaged connection at the bottom plate without overdriving fasteners into unintended locations.
• Round-hole and triangle-hole fastening pattern for top plate installation - using both hole types ensures maximum fastener engagement at the top plate, producing a stronger, fully secured connection where uplift forces are greatest.
• 18-gauge steel construction - provides the structural integrity needed for dependable stud-to-plate ties in light-frame walls without adding unnecessary bulk to the assembly.
• ZMAX galvanization offers extra corrosion resistance for exterior and treated-wood applications - the heavier zinc coating outperforms standard galvanized finishes, keeping the connector protected in harsh or chemically active environments over the long term.
• Installs with 10d common nails or 10d x 1 1/2 in. nails - compatible with widely available fasteners already on most job sites, so installation moves quickly without sourcing specialty hardware.
• Suited for both top-track and bottom-track applications - a single connector model covers multiple framing scenarios, reducing the number of different parts a contractor needs to keep on hand.

Why This Product

• One connector, multiple applications - the DSP double-stud plate tie works for sill plate connections, top plate connections, top-track, and bottom-track installations, making it a practical all-around choice for light-frame framing crews.
• ZMAX coating for demanding environments - the extra corrosion resistance built into the ZMAX finish means this connector holds up in exterior conditions and alongside treated lumber where standard galvanized hardware can deteriorate prematurely.
• Clear hole-filling instructions reduce installation error - distinct round and triangle hole patterns guide installers on exactly which fasteners to use for each application, helping ensure every connection meets its intended strength.
• American-made Simpson engineering - the DSPZ is backed by Simpson Strong-Tie's established reputation for connector design, giving builders and inspectors confidence in the product's performance for structural framing connections.

Specifications

• MPN: DSPZ
• Width: 2-3/4 in.
• Length: 6-11/16 in.
• Gauge: 18
• Coating: ZMAX
• Finish: ZMAX
• Install With: 10d common nails or 10d x 1-1/2 in. nails
• Country of Origin: United States

Approved Applications

• Connecting double studs to top plates in light-frame wall construction
• Connecting double studs to bottom sill plates in light-frame wall construction
• Top-track applications requiring a secure stud-to-plate tie
• Bottom-track applications requiring a secure stud-to-plate tie
• Exterior and treated-wood applications where enhanced corrosion resistance is required

Downloads and Resources

• View Spec Sheet

Frequently Asked Questions

What is the difference in fastener hole usage between sill plate and top plate installation?

For sill plate installation, fill all round holes with fasteners. For top plate installation, fill all round holes and triangle holes to ensure a fully secured connection.

What type of fasteners should be used to install the DSPZ?

The DSPZ should be installed with 10d common nails or 10d x 1-1/2 in. nails.

Why is the ZMAX coating important for this connector?

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

Can the DSPZ be used for both top-track and bottom-track applications?

Yes. The DSP double-stud plate tie is designed to connect double studs to top and bottom track and can be used for either top- or bottom-track applications, offering flexibility across different framing situations.