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H/TSP Seismic and Hurricane Ties

H/TSP

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Strong-Rod® URS Components

This product's information may differ depending on the category of use. You are currently viewing details related to Strong-Rod® URS Components. You can also view product information related to the category: Hurricane Ties for Plated Truss

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.

Material

  • See table

Finish

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

Installation

  • 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.

Related Literature

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.

   These models are approved for installation with the Strong-Drive® SD Connector screw. See the load values below.

  1. Loads have been increased for wind or earthquake loading with no further increase allowed: reduce where other loads govern.
  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 (exeption: 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 boundry 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 may be considered.
  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 u). For uplift continuous load path, connections in the same area (i.e. truss to plate connector and plate to stud connector) must be on the same side of the wall. See T-HTIEBEARING for more information.
  7. Southern Pine allowable uplift loads for H10A = 1,340 lb. and for the H14 = 1,465 lb.
  8. Refer to technical bulletin T-HTIEBEARING for allowable bearing enhancement loads.
  9. H10S can have the stud offset a maximum of 1" from 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 to also 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 Simpson Strong-Tie stainless-steel, SCNR ring-shank 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) 8d x 1 1/2" nails into the top plates and (3) 8d x 1 1/2" nails into the lowest three flange holes into the truss bottom chord is 260 lb. (160).
  14. Nails: 16d x 2 1/2" = 0.162" dia. x 2 1/2" long, 10d = 0.148" dia. x 3" long, 10d x 1 1/2" = 0.148" dia. x 1 1/2" long, 8d = 0.131" dia. x 2 1/2" long, 8d x 1 1/2" = 0.131" dia. x 1 1/2" long.
    See other nail sizes and information.
  15. Screws: Strong-Drive® SD #9 x 1 1/2" (model SD9112) = 0.131" dia. x 1 1/2" long (for the models marked with the orange flag only). Full table loads apply.
Load Values with Stainless Steel Nails
Model No. Fasteners DF/SP Allowable Loads Upliftwith8d x 1 1/2"Nails (160) SPF/HF Allowable Loads Upliftwith8d x 1 1/2"Nails (160)
To Rafters/ Truss To Plates To Studs Uplift Lateral (160) Uplift Lateral (160)
(160) F1 F2 (160) F1 F2
  1. H10ASS uplift load for southern pine with SSNA10 nails is 1340 lbs.
  2. SSNA8, SSA8d, SSNA10 nails are Simpson Strong-Tie® stainless steel ring shank nails.
  3. 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.
H2ASS 5-SSN8 2-SSN8 5-SSN8 400 130 55 - 345 130 55 -
5-SSNA8 2-SSNA8 5-SSNA8 575 130 55 - 495 130 55 -
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
H10ASS 9-SSN10 9-SSN10 - 970 565 195 - 835 485 170 -
9-SSNA10 9-SSNA10 - 1140 1 590 285 - 1015 505 285 -
Load Values with Strong-Drive® SD Connector Screws
Model No. Fasteners DF/SP Allowable Loads SPF/HF Allowable Loads
To Rafters/ Truss To Plates/ Base To Studs/ Post Uplift Lateral Uplift Lateral
(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

Code Reports & Compliance

Drawings

PDF DWG DXF RFA IFC SAT