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MSTCB Pre-Bent Strap

The MSTCB is a pre-bent strap designed to transfer tension load from an upper-story shearwall to a beam on the story below.

Material

  • 14 gauge

Finish

  • Galvanized. Some products available in ZMAX® coating; see Corrosion Information.

Related Literature

High Wind Guide
F-C-HWG23
A comprehensive guide to help designers select the most appropriate connections for high-wind regions.
Product Guide
Conectores para la construcción con madera 2024–2025
C-C-2024SP
El catálogo incluye información sobre nuevos productos, así como especificaciones e instrucciones de instalación aplicables para conectores estructurales de madera a madera y de madera a concreto.
Catalog
Wood Construction Connectors – Canadian Limit States Design
C-C-CAN2022
A complete product and application catalogue including load tables and installation information for wood-to-wood, wood-to-concrete and wood-to-masonry connectors.
Catalog
Connecteurs pour constructions en bois — Conception aux états limites canadiens
C-C-CAN2022CF
Un catalogue complet sur les produits et les applications, y compris de l’information sur l’installation et les tableaux de charge pour les connecteurs bois-à-bois, bois-à-béton et bois-à-maçonnerie.
Catalog
Wood Construction Connectors 2024-2025
C-C-2024
A catalog including new product information as well as any applicable specification and installation instructions for wood-to-wood and wood-to-concrete structural connectors.
Catalog

Product Information Table

Fastener Production Information and Stuff & Things
Model No. Ga. W (in.) L (in.) Coating/Material Packaging Qty.
MSTC48B3 14 3 44 7/8 Zinc Galvanized, G90 1
MSTC66B3Z 14 3 62 7/8 ZMAX® 1

Load Tables

    These products are available with additional corrosion protection.

  1. Using fewer than 38 nails in the studs/post will reduce the allowable load of the connection. To calculate a reduced allowable load, subtract 199 lb. per missing nail for DF/SP or 172 lb. per nail for HF/SPF.
  2. Nails in studs/post shall be installed symmetrically. Nails may be installed over the entire length of the strap in the studs/post.
  3. The minimum 3"-wide beam may be made up of two 2x members.
  4. MSTC48B3 and MSTC66B3Z installed over wood structural panel sheathing up to 1/2" thick achieve 0.85 of table loads.
  5. PSL beam may be used in lieu of a standard-dimension lumber beam with no load reductions.
  6. Multiply allowable loads by 1.85 to attain an allowable load for installations where two straps have been installed with a 1 1/2" clear space between straps.
  7. Structural composite lumber columns have sides that show either the wide face or the edges of the lumber strands/veneers known as the narrow face. Values in the tables reflect installation into the wide face. See Technical Bulletin T-C-SCLCLM for load reductions resulting from narrow-face installations.
  8. Fasteners: Nail dimensions in the table are listed diameter by length. For additional information, see Fastener Types and Sizes Specified for Simpson Strong-Tie Connectors.

Code Reports & Compliance

Drawings

PDF DWG DXF RFA IFC SAT