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MTSM/HTSM Twist Straps

MTSM/HTSM

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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 and HTSM offer high-strength truss-to-masonry connections.

Material

  • MTSM — 16 gauge; HTSM — 14 gauge

Finish

  • Galvanized; see Corrosion Information

Installation

  • Use all specified fasteners; see General Notes
  • Installs with hex-head Titen® 2 screws
  • Attach to either side of grouted concrete block with a minimum one #5 rebar horizontal
  • MTSM and HTSM can be field-bent once to a 45° angle

Related Literature

Load Tables

MTSM/HTSM 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® 2 screw is 1 1/2".
  4. See Titen® 2 screw information.
  5. Products shall be installed such that Titen® 2 screws are not exposed to the weather.
  6. Concrete shall have a minimum compressive strength of f'c = 2,500 psi.
  7. Grout-filled CMU (GFCMU) shall have a minimum compressive strength of f'm = 1,500 psi.
  8. 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.
  9. Fasteners: Nail dimensions in the table are diameter by length. Titen 2 concrete/masonry screws are Simpson Strong-Tie concrete/masonry screws. For additional information, see Fastener Types and Sizes Specified for Simpson Strong-Tie Connectors.
Typical MTSM20 Installation
Typical MTSM20 Installation

Code Reports

Part IAPMO UES ER ICC-ES ESR City of Los Angeles State of Florida
HTSMSee specific model numbers for code listings.
HTSM16 FL11473
HTSM20 FL11473
MTSMSee specific model numbers for code listings.
MTSM16 FL11473
MTSM20 FL11473

Drawings

Part Orthographic Perspective
HTSM16
HTSM16 Front View
DWG DXF
HTSM16 Left View
DWG DXF
High Wind Resistant Construction Detail D20: Post-Installed Truss/Rafter to Masonry/Concrete - HWRC D20 Post Installed TrussRafter to MasonryConcrete
DWG DXF
High Wind Resistant Construction Detail D31: Truss/Rafter Hip to End Wall - HWRC D31 TrussRafter Hip to End Wall
DWG DXF
High Wind Resistant Construction Detail D40: Truss/Rafter Directly to Stud - HWRC D40 TrussRafter directly to stud
DWG DXF
HTSM20
HTSM20 Front View
DWG DXF
HTSM20 Left View
DWG DXF
High Wind Resistant Construction Detail D20: Post-Installed Truss/Rafter to Masonry/Concrete - HWRC D20 Post Installed TrussRafter to MasonryConcrete
DWG DXF
High Wind Resistant Construction Detail D40: Truss/Rafter Directly to Stud - HWRC D40 TrussRafter directly to stud
DWG DXF
MTSM16
MTSM16 Front View
DWG DXF
MTSM16 Left View
DWG DXF
High Wind Resistant Construction Detail D10: I-Joists to Wall Framing - HWRC D10 I Joists to Wall Framing
DWG DXF
High Wind Resistant Construction Detail D26: Truss/Rafter Hip to Wall - HWRC D26 TrussRafter Hip to Wall
DWG DXF
High Wind Resistant Construction Detail D31: Truss/Rafter Hip to End Wall - HWRC D31 TrussRafter Hip to End Wall
DWG DXF
High Wind Resistant Construction Detail D45: Stud to Band Joist - HWRC D45 Stud to Band Joist"
DWG DXF
MTSM16 Installed Perspective View
DWG DXF
MTSM20
MTSM20 Front View
DWG DXF
MTSM20 Left View
DWG DXF
High Wind Resistant Construction Detail D10: I-Joists to Wall Framing - HWRC D10 I Joists to Wall Framing
DWG DXF
High Wind Resistant Construction Detail D14: I-Joists to Masonry/Concrete - HWRC D14 I Joists to MasonryConcrete
DWG DXF
High Wind Resistant Construction Detail D20: Post-Installed Truss/Rafter to Masonry/Concrete - HWRC D20 Post Installed TrussRafter to MasonryConcrete
DWG DXF
High Wind Resistant Construction Detail D45: Stud to Band Joist - HWRC D45 Stud to Band Joist"
DWG DXF
MTSM16 Installed Perspective View
DWG DXF