The Simpson Heavy Masonry Twist Strap is a heavy-duty structural connector engineered by Simpson Strong-Tie to deliver reliable truss-to-masonry connections where uplift resistance is critical. Built from 14-gauge steel with a G90 zinc galvanized finish, this 16-inch twist strap is purpose-built to help resist uplift forces at the point where trusses meet masonry walls - making it a dependable choice for residential and commercial construction requiring a secure, code-conscious connection at grouted concrete block assemblies.

Key Features

• Installs with hex-head Titen screws - provides a straightforward, no-guesswork fastening method that keeps the installation process efficient and consistent.
• Attaches to either side of grouted concrete block with a minimum one #5 rebar horizontal - gives installers placement flexibility on the masonry wall while ensuring the connection meets reinforcement requirements for structural integrity.
• Made from 14-gauge steel - delivers the heavy-duty strength needed to handle demanding truss-to-masonry uplift loads without sacrificing ease of handling on the job site.
• Galvanized (G90) for extra corrosion resistance - the zinc galvanized coating helps protect the strap against moisture and environmental exposure, supporting long-term performance in both interior and exposed applications.

Why This Product

• Purpose-built for uplift resistance at masonry connections - unlike general-purpose straps, this connector is specifically designed to help resist uplift forces where trusses meet masonry construction, addressing one of the most critical structural challenges in that joint.
• Heavy-gauge construction backed by a trusted name - 14-gauge steel and Simpson Strong-Tie engineering combine to deliver a high-strength connector that contractors and builders have relied on across a wide range of structural applications.
• Versatile attachment positioning simplifies layout - the ability to attach to either side of grouted concrete block means the strap adapts to real-world site conditions rather than forcing a single rigid installation approach.
• G90 galvanized coating adds durability without extra steps - corrosion protection is built directly into the strap, reducing long-term maintenance concerns and making it suitable for projects where moisture exposure is a factor.

Specifications

• Model Number: HTSM16
• Length: 16 in.
• Gauge: 14
• Coating/Finish: Zinc Galvanized, G90
• Install With: Install with 10d common nails and Titen screws (sold separately)
• Country of Origin: United States

Downloads and Resources

• Use all specified fasteners; See Specifications

Frequently Asked Questions

What type of fasteners are used to install the HTSM16?

The HTSM16 installs with hex-head Titen screws as well as 10d common nails. Always use all specified fasteners per the installation requirements.

What masonry substrate is the HTSM16 designed to attach to?

The HTSM16 is designed to attach to either side of grouted concrete block with a minimum of one #5 rebar horizontal reinforcement present.

What gauge steel is used in the HTSM16, and does it have corrosion protection?

The HTSM16 is made from 14-gauge steel and features a G90 zinc galvanized coating, which provides extra corrosion resistance for long-term durability.

What is the primary structural purpose of the HTSM16 twist strap?

The HTSM16 is designed to provide a high-strength truss-to-masonry connection and is specifically engineered to help resist uplift forces at that joint.

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