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STHD Strap Tie Holdowns

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The STHD is an embedded strap tie holdown with high load capacity and designed to reduce spalling.

Features:

Material: 68 mil (12 ga).

Finish: Galvanized.

Installation:

Also see Post Tension information.

top Gallery:
  roll over images below to see larger image
 
STHD
U.S. Patent
5,813,182
Typical STHD Corner Installation on 3 studs (for 2 pour, see footnote 3.) SPALLING LOAD REDUCTION!** Typical STHD Two Pour Installation
**If strap is bent horizontal 90° during installation, and then bent vertical for fastening to the stud, concrete spalling could result. Load reductions may apply, see installation note.
Typical
STHD14RJ
Rim Joist
Application
Typical STHD Edge Installation (see footnote 7.) Single Pour Rebar Installation* Two Pour Rebar Installation*
    *Maintain minimum rebar cover, per ACI-318 concrete code requirements.

top New Features and Benefits on the STHD Strap Tie Holdowns:
   
 
Features
  • Built-in tab
  • StrapMate®
  • Additional diamond hole in RJ versions

Benefits

  • Built-in Tab:
    • Reduces spalling and costly retrofits.
    • No additional labor to install.
    • Holds STHD away from form board.
  • StrapMate® Locator Line:
    • Easy inspection to ensure proper location.
    • Allows Adjustment without removing STHD.
  • Additional Diamond Hole:
    • One more fastener to help prevent the STHD RJ models from bowing out at the rim joist section.

top Load Table: See code report listings below
Table
  1. 'RJ' after the model indicates STHDs for rim joist applications, e.g. STHD8RJ.
  2. STHD14RJ requires 22-#10 screws, with the (le) load at 133% of 4960 lbs.
  3. For two pour with 4" slab or less. The STHD14 load at 1/2" edge 2000 psi is 3235 lbs. The STHD10 at the same condition is 2035 lbs.
  4. Tabulated loads are governed by tests and may not be increased. Refer to Steel Stress Increase for additional information.
  5. Not all fastener holes need to be filled as additional fastener holes provided. Install fasteners symmetrically.
  6. Loads are based on the attachment of the STHD to a minimum of a 33 mil (20 ga) member.
  7. Table loads apply to end installation applications provided there is a minimum end distance of le.
top Code Reports (PDFs):
Legacy Reports
  IAPMO ES ER ICC-ES ESR CITY OF LOS ANGELES STATE OF FLORIDA ICC-ES NER ICC-ES ER ICC-ES ES
S/HPAHD22      FL9601   ER-5275  
STHDSee specific model numbers for code listings.
STHD10      FL503 / FL9601   ER-5275 / ER-5349  
STHD10RJ      FL503 / FL9601   ER-5349  
STHD14      FL503 / FL9601   ER-5275 / ER-5349  
STHD14RJ      FL503 / FL9601   ER-5349  
STHD8      FL503 / FL9601   ER-5275 / ER-5349  
STHD8RJ      FL503 / FL9601   ER-5349  

   
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