The Simpson MSTAM24 18-Gauge Galvanized Medium Strap Tie for Masonry is an engineered tension connector built to resist uplift forces in wood-to-masonry connections. Designed by Simpson for use with either concrete or grout-filled concrete masonry units (GFCMU), this medium strap tie features a staggered nail pattern that helps minimize wood splitting during installation, making it a dependable choice for floor-to-floor clear span applications and jobs where wind and seismic resistance are required.

Key Features

• Load-rated with correct thickness and fastener count - delivers consistent, engineered performance that field-fabricated straps cannot reliably match, reducing guesswork and liability on the job.
• Increased load values for wind and seismic forces - provides greater confidence in high-stress applications where building codes demand proven uplift resistance.
• Floor-to-floor clear span application - suited for multi-story connections where continuous tension transfer between levels is required.
• Staggered nail pattern design - helps minimize wood splitting during fastener installation, protecting the structural member and maintaining connection integrity.
• 18-gauge steel construction - provides the structural thickness needed for rated load performance in demanding masonry connection scenarios.
• G90 zinc galvanized coating - protects against corrosion in the harsh environments common to masonry and concrete construction, supporting long-term structural integrity.

Why This Product

• Engineered reliability over field fabrication - because the MSTAM24 is load rated with the correct thickness and number of fasteners, contractors get predictable, code-supportable performance rather than the inconsistency of a custom-cut field strap.
• Dual-substrate compatibility - a single strap model works with both concrete and grout-filled concrete masonry units, reducing the need to stock separate connectors for different masonry substrates on the same project.
• Built-in uplift capacity for wind and seismic zones - with load values specifically increased for wind and seismic forces, this strap is well suited for projects in regions with elevated lateral and uplift design requirements.
• Corrosion-resistant finish for long service life - the G90 galvanized coating helps the connector hold up in the demanding moisture conditions associated with masonry and concrete construction, reducing maintenance concerns over time.

Specifications

• Model Number: MSTAM24
• Gauge: 18
• Strap Length: 24 in.
• Width: 1-1/4 in.
• Coating: Zinc Galvanized, G90
• Finish: Zinc Galvanized, G90
• Country of Origin: United States

Approved Applications

• Wood-to-masonry uplift connections requiring tension load resistance
• Concrete masonry unit (CMU) applications
• Grout-filled concrete masonry unit (GFCMU) applications
• Floor-to-floor clear span connections
• Installations requiring resistance to wind and seismic forces

Frequently Asked Questions

What fasteners are required to install the MSTAM24?

Install with (9) 0.148 in. x 3 in. common nails AND (5) 1-1/4 in. x 2-1/4 in. Titen Turbo screws for GFCMU, OR (5) 1-1/4 in. x 1-3/4 in. Titen Turbo screws for concrete.

Is the MSTAM24 compatible with both concrete and grout-filled concrete masonry units?

Yes. The MSTAM24 is designed for use with either concrete or grout-filled concrete masonry units (GFCMU), with specific fastener requirements for each substrate as noted in the installation instructions.

Why is the MSTAM24 preferable to a field-fabricated strap?

Unlike field-fabricated straps, the MSTAM24 is load rated with the correct thickness and number of fasteners, ensuring consistent, engineered performance. Its loads have also been increased for wind and seismic forces.

What does the G90 galvanized coating provide?

The G90 zinc galvanized coating provides corrosion resistance, helping the strap maintain structural integrity in the demanding environments typical of masonry construction applications.

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