H/TSP Seismic and Hurricane Ties

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$0.45 - $17.89


Simpson Strong-Tie hurricane ties provide a positive connection between the truss/rafter and the wall of the structure to resist wind and seismic forces.


  • See table


  • Galvanized. H7Z and H11Z — ZMAX® coating. Some models available in stainless steel or ZMAX. See Corrosion Information.


  • Use all specified fasteners; see General Notes.
  • Hurricane ties can be installed with flanges facing inward or outward.
  • H2.5T, H3 and H6 ties are shipped in equal quantities of right and left versions (right versions shown).
  • Hurricane ties do not replace solid blocking.
  • When installing ties on plated trusses (on the side opposite the truss plate), do not fasten through the truss plate from behind. This can force the truss plate off of the truss and compromise truss performance.
  • H10A optional nailing to connect shear blocking: use 0.131" x 2 1/2" nails. Slots allow maximum field bending up to a pitch of 6:12; use H10A sloped loads for field-bent installation.

Load Tables

Load Values with Carbon Steel Nails

    These products are available with additional corrosion protection. Additional products on this page may also be available with this option, check with Simpson Strong-Tie for details.

    For stainless-steel fasteners, see Fastener Types and Sizes Specified for Simpson Strong-Tie Connectors.

    Many of these products are approved for installation with Strong-Drive® SD Connector screws.

H/TSP Seismic and Hurricane Ties Load Table
  1. See General Notes for Straps and Ties.
  2. Allowable loads are for one anchor. A minimum rafter thickness of 2 1/2" must be used when framing anchors are used on each side of the joist and on the same side of the plate (exception: connectors installed such that nails on opposite side don't interfere).
  3. Allowable DF/SP uplift load for stud-to-bottom plate installation (see detail 15) is 390 lb. (H2.5A); 265 lb. (H2.5ASS); and 310 lb. (H8). For SPF/HF values, multiply these values by 0.86.
  4. Allowable loads in the F1 direction are not intended to replace diaphragm boundary members or cross-grain bending of the truss or rafter members.
  5. When cross-grain bending or cross-grain tension cannot be avoided in the members, mechanical reinforcement to resist such forces shall be considered by the Designer.
  6. Hurricane ties are shown on the outside of the wall for clarity and assume a minimum overhang of 3 1/2". Installation on the inside of the wall is acceptable (see General Instructions for the Installer notes). For uplift continuous load path, install connectors in the same area (e.g., truss-to-plate connector and plate-to-stud connector) on the same side of the wall, unless detailed by designer. See technical bulletin T-C-HTIECON for more information.
  7. Southern pine allowable uplift loads for H10A = 1,340 lb. and for the H14 = 1,465 lb.
  8. Refer to Simpson Strong-Tie® technical bulletin T-C-HTIEBEAR for allowable bearing enhancement loads.
  9. H10S can have the stud offset a maximum of 1" from the rafter (center to center) for a reduced uplift of 890 lb. (DF/SP) and 765 lb. (SPF).
  10. H10S nails to plates are optional for uplift but required for lateral loads.
  11. Some load values for the stainless-steel connectors shown here are lower than those for the carbon-steel versions. Ongoing test programs have shown this also to be the case with other stainless-steel connectors in the product line that are installed with nails. See General Corrosion Risks for updated information.
  12. The allowable loads of stainless-steel connectors match carbon-steel connectors when installed with stainless-steel Strong-Drive® SCNR Ring-Shank Connector nails. For more information, refer to engineering letter L-F-SSNAILS.
  13. Allowable DF/SP/SPF uplift load for the H2.5A fastened to a 2x4 truss bottom chord and double top plates using (5) 0.131" x 1 1/2" nails in the top plates and (3) 0.131" x 1 1/2" nails in the lowest three flange holes into the truss bottom chord is 260 lb. (160).
  14. For TSP installed stud to single plate see Stud-Plate Ties.
  15. 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.
Load Values with Stainless Steel Nails
Model No.FastenersDF/SP Allowable LoadsUplift with 8d x 1 1/2" Nails (160)SPF/HF Allowable LoadsUplift with 8d x 1 1/2" Nails (160)
To Rafters/ TrussTo PlatesTo StudsUpliftLateral (160)UpliftLateral (160)
  1. SSNA8, SSA8d, SSNA10 nails are Simpson Strong-Tie® stainless steel ring shank nails.
  2. NAILS: SSN8 and SSNA8 = 0.131" dia. X 1 1/2" long. SSN10 and SSNA10 = 0.148" dia. X 1 1/2" long. SSA8d = 0.131" dia. x 2 1/2" long. See other nail sizes and information.
H2.5ASS 5-SS8d 5-SS8d - 440 75 70 365 380 75 70 310
5-SSA8d 5-SSA8d - 600 110 110 575 535 110 110 495
H3SS 4-SS8d 4-SS8d - 280 145 120 275 225 100 85 210
4-SSA8d 4-SSA8d - 455 125 160 415 320 105 140 290
H8SS 5-SSN10 5-SSN10 - 610 90 120 440 370 90 55 335
5-SSNA10 5-SSNA10 - 745 75 - 630 565 75 - 510
Load Values with Strong-Drive® SD Connector Screws
Model No.FastenersDF/SP Allowable LoadsSPF/HF Allowable Loads
To Rafters/ TrussTo Plates/ BaseTo Studs/ PostUpliftLateralUpliftLateral
(160)F1 (160)F2 (160)(160)F1 (160)F2 (160)

    These products are available with additional corrosion protection. Additional products on this page may also be available with this option, check with Simpson Strong-Tie for details.

  1. H connector loads based on installation to double top plate.
  2. Uplift load for the H8 stud to bottom plate installation is 380 lbs for DF/SP and 325 lbs for SPF/HF.
H1 6-SD9112 4-SD9112 - 505 600 390 435 515 335
H2.5 5-SD9112 5-SD9112 - 480 305 165 410 265 145
H2.5A 5-SD9112 5-SD9112 - 625 450 110 540 385 95
H8 5-SD9112 5-SD9112 - 820 85 - 705 75 -
H10 8-SD9112 8-SD9112 - 1135 840 325 975 720 280


Extra Information

Simpson Strong-Tie
0.40 LBS