The Simpson SP4 Stud Plate Tie by Simpson is a U-shaped structural connector engineered to create a dependable stud-to-plate connection that resists uplift in wood-framed wall assemblies. Its horizontal portion bears firmly against wood-wall top plates or sill plates, while two vertical legs are nailed to the edges of a wood stud - delivering a cost-effective way to help your structure stand up to wind and seismic forces when installed before wall placement.

Key Features

• Load rated - gives you confidence that the connector meets defined performance standards for structural applications
• Designed to resist wind and seismic forces - helps protect wood-framed walls against the lateral and uplift loads that storms and seismic events place on a structure
• Does not require top or bottom track attachment - simplifies installation and reduces the number of additional components needed on the job
• Nominal stud size 2x; nominal plate width 4x - sized to fit standard dimensional lumber so there is no need for custom fitting or modification
• Made from 20-gauge steel - provides solid structural integrity while keeping the tie lightweight and easy to handle during installation
• G90 zinc galvanized coating - delivers extra corrosion resistance for long-term durability in wood framing applications

Why This Product

• Purpose-built uplift resistance - the U-shaped profile is specifically designed as a stud-to-plate connection to counteract uplift forces, making it a targeted solution rather than a generic tie
• Installation-friendly design - because no top or bottom track attachment is required and the tie is installed before wall placement, crews can work efficiently without extra steps or hardware
• Wind and seismic rated - the SP4 is engineered to resist the forces most likely to compromise wall integrity during high-wind events and earthquakes, giving builders and inspectors a verifiable solution
• Cost-effective corrosion protection - the G90 galvanized finish guards against moisture-related degradation over time, helping the connection maintain its structural value without the cost of heavier coatings

Specifications

• Model Number: SP4
• Width: 3-9/16 in.
• Length: 7-1/4 in.
• Gauge: 20
• Coating: Zinc Galvanized, G90
• Finish: Zinc Galvanized, G90
• Member Size: 2x stud; 4x plate
• Installation Fasteners: (6) 0.148 in. x 1-1/2 in. nails (sold separately)
• Country of Origin: United States

Frequently Asked Questions

What is the primary function of the Simpson SP4 Stud Plate Tie?

The SP4 is designed as a stud-to-plate connection to resist uplift. Its U-shaped form has a horizontal portion that bears against the wood-wall top plates or sill plates, while two vertical legs are nailed to the edges of a wood stud, helping the structure withstand wind and seismic forces.

What fasteners are required to install the SP4?

Installation of the SP4 requires (6) 0.148 in. x 1-1/2 in. nails, which are driven into the vertical legs of the tie to secure it to the edges of the wood stud.

Does the SP4 require attachment to a top or bottom track?

No. The SP4 does not require top or bottom track attachment, which simplifies installation and makes it a versatile option for wood-framed wall assemblies.

What steel gauge and corrosion protection does the SP4 offer?

The SP4 is made from 20-gauge steel with a G90 zinc galvanized coating, providing extra corrosion resistance for long-term durability in wood framing applications.