The Simpson MSTA15 Medium Strap Tie is engineered by Simpson to resist tension loads in wood-to-wood uplift applications, making it a reliable structural connector for floor-to-floor clear span connections exposed to wind and seismic forces. Designed specifically for use on the edge of 2x members, this 18-gauge galvanized strap tie incorporates a staggered nail pattern to help minimize wood splitting during installation, ensuring the structural integrity of connected members is preserved on every job.

Key Features

• Load-rated with correct thickness and number of fasteners - delivers consistent, engineered performance that field-fabricated straps simply cannot guarantee, reducing liability and guesswork on the job site
• Increased load ratings for wind and seismic forces - provides confidence in high-stress structural applications where building codes demand verified resistance to lateral and uplift forces
• Floor-to-floor clear span application - purpose-built geometry allows for reliable connections across clear spans without compromising load transfer between framing levels
• Designed for use on the edge of 2x members - fits standard framing lumber precisely, simplifying installation and ensuring proper alignment for rated performance
• Staggered nail pattern - helps minimize wood splitting so the connected members retain full structural integrity throughout the fastening process
• 18-gauge steel construction - provides the strength and dimensional consistency required for load-rated uplift connections in residential and light commercial framing
• G90 zinc galvanized coating - delivers extra corrosion resistance suitable for demanding construction environments where moisture exposure is a concern

Why This Product

• Engineered reliability over field improvisation - because the MSTA15 is load-rated with the correct gauge and fastener count, contractors get a tested, code-supportable connection rather than the inconsistency of a field-fabricated strap
• Built for seismic and wind uplift demands - with loads specifically increased for wind and seismic forces, this strap tie is well suited for projects in regions where structural uplift resistance is a critical design requirement
• Installation-friendly design reduces on-site damage - the staggered nail pattern actively works to protect the wood members from splitting, helping crews maintain a clean, structurally sound installation the first time
• Durable G90 galvanized finish - the zinc galvanized coating provides a meaningful layer of corrosion protection, extending the service life of the connection in environments where bare steel would degrade prematurely

Specifications

• MPN: MSTA15
• Length: 15 in.
• Width: 1-1/4 in.
• Gauge: 18
• Coating/Finish: Zinc Galvanized, G90
• Member Size: 2x
• Country of Origin: United States

Approved Applications

• Wood-to-wood uplift 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 fasteners should be used to install the MSTA15?

The MSTA15 should be installed with 10d common nails for proper load-rated performance.

Why is a staggered nail pattern used on the MSTA15?

The staggered nail pattern is specifically designed to help minimize wood splitting during installation, ensuring the structural integrity of the connected members is maintained.

What type of corrosion protection does the MSTA15 have?

The MSTA15 features a G90 zinc galvanized coating, which provides extra corrosion resistance suitable for demanding construction environments.

How does the MSTA15 differ from a field-fabricated strap?

Unlike field-fabricated straps, the MSTA15 is load rated with the correct thickness and number of fasteners, ensuring consistent, engineered performance for wind and seismic force resistance.

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