LTT/HTT Tension Ties
Tension ties offer a solution for resisting tension loads that are fastened with nails. The HTT4 and HTT5 are the latest generation of tension ties. They feature an optimized nailing pattern which results in better performance with less deflection. Designed to meet new code standards, the HTT4 and HTT5 offer higher loads than their predecessors.
HTT5KT is sold as a kit with the holdown, bearing plate washer and Strong-Drive® SD Connector screws. The HTT5-3/4 is designed to use a 3/4" diameter anchor bolt. 3/4" epoxied anchor bolts are commonly used when retrofitting tension ties to horizontal wood members.
The LTT19 Light Tension Tie is designed for 2x joists or purlins and the LTT20B is for nail- or bolt-on applications. The 3" nail spacing makes the LTT20B suitable for wood I-joists with 10dx1 1/2. The LTTI31 is designed for wood chord open web truss attachments to concrete or masonry walls and may also be installed vertically on a minimum 2x6 stud.
Galvanized. May be ordered HDG; contact Simpson Strong-Tie.
- Use all specified fasteners. See Holdown and Tension Tie General Notes.
- A standard cut washer is required for LTT19 and LTT20B when using 1/2" or 5/8" anchor bolts. No additional washer is required when using 3/4" anchor bolt.
- View step-by-step installation instructions in the Installer's Pocket Guide (S-C-INSTALL).
Conectores Metálicos Estructurales 2013-2015C-2013SPInformación completa de productos, de la aplicación, de las tablas de cargas y de la instalación, para conectores Simpson Strong-Tie® de madera a madera, madera a concreto y concreto a mampostería.Catalog
Cold-Formed Steel Connectors CatalogC-CFS-15Product information, specifications, load tables and installation illustrations for our cold-formed steel connectors and clips for commercial curtain-wall, mid-rise and residential construction.Catalog
High Wind-Resistant Construction Application GuideF-C-HWRCAG16The newly updated High Wind-Resistant Construction Application Guide offers new applications, updated loads, as well as more fastening information that is used to resist high-wind.Product Guide
S/LTT, S/DTT and HTT Tension TiesT-CF-LTT1SB16Submittal/substitution request for S/LTT, S/DTT and HTT tension ties for cold-formed steel construction.Submittal
Submittal/Substitution Request CoverT-CF-CWCSUB16This editable cover sheet allows for the easy completion of submittal/substitution request forms for Simpson Strong-Tie cold-formed steel connectors.Submittal
Installer's Pocket GuideS-C-INSTALL16S-C-INSTALL16 is a guide featuring updated products, new color illustrations and easier navigation. Some popular structural fastening and anchoring products have also been added.Installation Guide
Anchoring Solutions for Simpson Strong-Tie® Connectors in Wind and Low-Seismic RegionsT-ANCHORSPEC12A cross-reference to help evaluate the anchorage solution options for Simpson Strong-Tie holdowns, tension ties and post bases. Extensive details included for various foundation types.Technical Bulletin
City of Los Angeles RR Values for Connectors in Shear Walls and Wall Anchorage AssembliesT-C-HDLA15T-C-HDLA15 is a technical bulletin that details holdown requirements imposed by the City of Los Angeles and provides adjusted load values for Simpson Strong-Tie holdowns that meet these requirements.Technical Bulletin
Connector Solutions to Meet the Wall-Bracing Requirements of 2009 IRCT-WALLBRACE12This technical bulletin provides info about our products that meet the requirements for constructing braced-wall panels as listed in Section R602.10.2 of the 2009 IRC.Technical Bulletin
Connectors Installed on SCL ColumnsT-C-SCLCLM16A one-page, single-sided technical bulletin discussing the structural properties of the two different surface sides of SCL columns, including the listing of reduction factors.Technical Bulletin
Panelized Roof SystemsT-C-PRS15Learn about the guidelines for designing and installing our connectors to meet the requirements of the 2009 IBC for structures using panelized wood roof systems with concrete or masonry walls.Technical Bulletin
Uplift Connectors Truss-to-Wall Tiedowns (Spruce-Pine-Fir)T-C-UPLIFTSPF16A one-page, double-sided technical bulletin providing allowable loads and fastening requirements for when a wood truss is supported by a Spruce-Pine-Fir or Hem Fir double top plate.Technical Bulletin
Connectors Installed on SCL Columns, Limit States DesignT-C-SCLCLMCAN13This technical bulletin for Canadian Limit States discusses the structural properties of the two different surface sides of columns made from structural composite lumber.Technical Bulletin
Holdown Anchors: Slab-on-GradeL-C-HDABSOG15Anchor Bolt Recommendations for Holdowns Used with Slab-On-Grade Foundations.Engineering Letter
Holdown Anchors: StemwallL-C-HDABSTEM15Anchor Bolt Recommendations for Holdowns Used with Stemwall FoundationsEngineering Letter
Max. 42" Guardrail PostL-C-GRDRLPST4216Code-compliant guardrail post connections, supplement to T-GRDRLPST, maximum guardrail height of 42 inches.Engineering Letter
Raised Holdowns with CFSL-CF-RAISEDHD16Raised Simpson Strong-Tie® Holdowns in Wood-Sheathed Cold-Formed Steel framed Shear Walls.Engineering Letter
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These models are approved for installation with the Strong-Drive® SD Connector screw. See the load values below.
- LTT holdowns may not be installed more than 4½" above the top of concrete.
- LTTI31 installed flush with concrete or masonry has an allowable load of 2285 lbs.
- Allowable load for HTT5 with a BP5/8-2 bearing plate washer installed in the seat of the holdown is 5295 lbs. for DF/SP and 4555 lbs. for SPF/HF.
- FASTENERS: 10dx1 1/2= 0.148" dia. x 1 1/2" long,
10d = 0.148" dia. x 3" long,
16dx2 1/2= 0.162" dia. x 2 1/2" long,
SD #10x2 1/2 = 0.161" dia. x 2 1/2",
SD #10x1 1/2 = 0.161" dia. x 1 1/2".
See other fastener sizes and information.
|Part||IAPMO UES ER||ICC-ES ESR||City of Los Angeles||State of Florida|
|HTT||See specific model numbers for code listings.|
|HTT4||ER-102 ER-130 ER-124||RR25818 RR25489||FL10456 FL11496|
|HTT5||ER-102 ER-130 ER-124||RR25818 RR25489||FL10456 FL11496|
|LTT||See specific model numbers for code listings.|