The Simpson MSTC40 40-1/4 in. 16-Gauge Galvanized Medium Strap is a high-capacity tension strap from Simpson Strong-Tie built to join and reinforce wood-to-wood connections across a wide range of structural and repair applications. Constructed from 16-gauge steel with a G90 zinc galvanized coating, this medium strap delivers dependable load transfer performance whether you are tackling light repairs or heavy-duty framing projects. Its thoughtfully engineered fastener pattern and countersunk nail slots make installation cleaner and more precise, reducing common on-site challenges like wood splitting and protruding nail heads.

Key Features

• Designed to transfer tension loads in a wide variety of applications - gives contractors and builders a single versatile strap tie solution that works across many connection types, reducing the need for multiple specialized hardware pieces.
• High-capacity strap with a staggered nail pattern - the staggered layout distributes fastener load more evenly across the wood, helping minimize splitting and preserving the integrity of the lumber during and after installation.
• Countersunk nail slots - provide a lower nail-head profile so installed fasteners sit flush or recessed, resulting in a cleaner finish and reducing interference with adjoining materials.
• Made from 16-gauge steel - delivers the structural strength needed for demanding tension load applications while keeping the strap workable and easy to handle on the job site.
• Galvanized with a G90 zinc coating - the extra corrosion resistance makes this strap suitable for use in moisture-prone environments, extending the service life of the connection over time.
• 3 in. wide by 40-1/4 in. long profile - the generous length spans larger connection zones, giving installers more bearing surface and more fastener points for a stronger, more secure joint.

Why This Product

• Purpose-built for tension load transfer - unlike general-purpose flat plates, this strap is specifically engineered to handle tension forces, making it a reliable choice for structural framing, repairs, and reinforcement work where joint integrity is critical.
• Installer-friendly design reduces common job site problems - the combination of a staggered nail pattern and countersunk slots means less risk of splitting lumber and fewer protruding fastener heads to deal with, saving time and rework during installation.
• G90 galvanized coating stands up to tough conditions - the corrosion-resistant finish is well-suited for applications where moisture exposure is a concern, giving builders confidence that the connection will hold up over the long term.
• Versatile enough for a wide range of projects - Simpson Strong-Tie straps are designed to work on the wide or narrow face of lumber for both light repairs and heavy-duty structural applications, making the MSTC40 a practical addition to any framing or construction toolkit.

Specifications

• Model Number: MSTC40
• Gauge: 16
• Thickness: 54 mil
• Length: 40-1/4 in.
• Width: 3 in.
• Coating: Zinc Galvanized, G90
• Finish: Zinc Galvanized, G90
• Country of Origin: United States
• Installation Fasteners: Install with 16d sinkers or #9 x 1-1/2 in. Strong-Drive SD screws (sold separately)

Options

• Special sizes can be made to order. Contact us for Configurable Options and Special orders

Frequently Asked Questions

What type of loads is the Simpson MSTC40 designed to handle?

The MSTC40 is specifically designed to transfer tension loads in a wide variety of wood-to-wood structural applications, making it suitable for both light repairs and heavy-duty projects.

What fasteners should be used to install the MSTC40?

The MSTC40 should be installed with 16d sinkers or #9 x 1-1/2 in. Strong-Drive SD screws for optimal performance.

How does the MSTC40 help prevent wood splitting during installation?

The MSTC40 features a staggered nail pattern specifically designed to help minimize wood splitting, and its nail slots are countersunk to provide a lower nail-head profile for a cleaner, more secure installation.

Is the MSTC40 suitable for outdoor or corrosive environments?

Yes. The MSTC40 is coated with a G90 zinc galvanized finish, which provides extra corrosion resistance, making it well-suited for use in environments where moisture exposure is a concern.

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