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MTSM Medium Twist Strap for Masonry

Twist Straps for Masonry

This product's information may differ depending on the category of use. You are currently viewing details related to Twist Straps for Masonry. You can also view product information related to the categories of: Twist Straps for Plated Truss, Roof Truss and Rafter Connectors, Ties, and Straps for Cold-Formed Steel Construction

The MTSM offers moderate-strength truss-to-masonry connections. This twist strap has a small bend section to reduce interference at the transition points between the two members. The MTSM is load rated for installation on both grout-filled CMU (GFCMU) and concrete.

Key Features

  • Straps do not need to be wrapped over the truss to achieve the allowable load
  • Can be field bent once to a 45° angle


  • 16 gauge (54 mil)


  • Galvanized; see Corrosion Information


  • Use all specified fasteners; see General Notes
  • Installs with hex-head Titen Turbo™ screws
  • Attach to either side of grouted concrete block with a minimum one #5 rebar horizontal
  • Products shall be installed such that Titen Turbo screws are not exposed to the exterior environment

Related Literature

Product Information Table

Fastener Production Information and Stuff & Things
Model No. Thickness (mil) Ga. L (in.) Coating/Material Packaging Qty.
MTSM16 54 16 16 Zinc Galvanized, G90 1
MTSM20 54 16 20 Zinc Galvanized, G90 1

Load Tables

MTSM Twist Straps Load Table
  1. Loads have been increased for wind or earthquake loading, with no further increase allowed. Reduce where other loads govern.
  2. Twist straps do not need to be wrapped over the truss to achieve the allowable load.
  3. Minimum edge distance for Titen Turbo screw is 1 1/2".
  4. See Titen Turbo screw information.
  5. Concrete shall have a minimum compressive strength of f'c = 2,500 psi.
  6. Grout-filled CMU (GFCMU) shall have a minimum compressive strength of f'm = 1,500 psi.
  7. Lateral loads apply when the first seven nail holes on the truss/rafter near the bend line are filled. Any other fasteners required can be installed in any open hole.
  8. Fasteners: Nail dimensions in the table are diameter by length. Titen Turbo screws are Simpson Strong-Tie® concrete and masonry screws (hex-head model required). For additional information, see Fastener Types and Sizes Specified for Simpson Strong-Tie Connectors.
Typical MTSM20 Installation
Typical MTSM20 Installation

Code Reports & Compliance