The Simpson MSTA9 9-Inch Medium Strap Tie by Simpson is engineered to resist tension loads in wood-to-wood uplift applications, making it a dependable choice for floor-to-floor clear span connections and structural tie applications where wind and seismic forces are a concern. Built from 18-gauge steel with a G90 galvanized coating, this strap tie features a staggered nail pattern that helps minimize wood splitting during installation on the edge of 2x members.

Key Features

• Load-rated with correct thickness and fastener count - eliminates the guesswork and inconsistency of field-fabricated straps, so you get verified, reliable performance on every installation
• Increased load values for wind and seismic forces - provides added structural confidence in applications where uplift resistance and lateral force performance are required by code
• Floor-to-floor clear span application - purpose-built geometry supports multi-story framing connections without compromising span clearance
• Designed for use on the edge of 2x members - fits standard dimensional lumber framing accurately, reducing the need for field adjustments
• Staggered nail pattern - strategically positions fasteners to help minimize wood splitting, protecting the integrity of the lumber and the connection
• G90 galvanized coating - provides extra corrosion resistance compared to standard galvanized finishes, extending service life in demanding environments

Why This Product

• Engineered reliability over field-fabricated alternatives - because the MSTA9 is load rated with the correct steel thickness and fastener count, contractors and inspectors can trust the connection meets rated performance standards rather than relying on estimated field work
• Built for code-sensitive structural applications - with load values specifically increased for wind and seismic forces, this strap tie is well suited for framing projects in regions with strict uplift and lateral load requirements
• Installation-friendly design that protects the wood - the staggered nail pattern reduces the risk of splitting when fastening to 2x member edges, helping maintain lumber integrity and a cleaner, stronger finished connection
• Durable G90 galvanized finish for long-term performance - the G90 coating delivers extra corrosion resistance, making this strap tie a sound investment for applications where moisture exposure is a real-world concern

Specifications

• MPN: MSTA9
• Length: 9 in.
• Width: 1-1/4 in.
• Gauge: 18
• Coating/Finish: Zinc Galvanized, G90
• Member Size: 2x
• Install With: 0.148 in. x 3 in. nails or #9 x 1-1/2 in. Strong-Drive SD screws
• Country of Origin: United States

Approved Applications

• Wood-to-wood uplift and tension load resistance
• Floor-to-floor clear span connections
• Edge of 2x member installations
• Applications requiring resistance to wind and seismic forces

Frequently Asked Questions

What type of fasteners should be used to install the MSTA9?

The MSTA9 should be installed with 0.148 in. x 3 in. nails or #9 x 1-1/2 in. Strong-Drive SD screws for a properly rated connection.

What is the gauge and coating of the MSTA9 strap tie?

The MSTA9 is made from 18-gauge steel and features a Zinc Galvanized, G90 coating, which provides extra corrosion resistance compared to standard galvanized finishes.

Why is the MSTA9 preferred over a field-fabricated strap?

Unlike field-fabricated straps, the MSTA9 is load rated with the correct thickness and number of fasteners, ensuring consistent and verified performance under tension, wind, and seismic forces.

Does the MSTA9 help prevent wood splitting during installation?

Yes. The MSTA9 utilizes a staggered nail pattern specifically designed to help minimize wood splitting when fastening to the edge of 2x members.

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