Naming Scheme:

The CTUD is a combination coupler nut and take-up device. It compensates for the slack that develops in the system due to the shrinkage of wood members and settlement caused by dead load and construction loading. It will accommodate up to 1" of movement and is available in standard and reducing sizes for 5/8", 7/8" and 1 1/8" diameter Strong-Rod™ or threaded rod.

• Design of the CTUD eliminates parts and simplifies installation.
• Easy installation saves time, resulting in a lower installed cost.
• Witness Holes™ allow for easy inspection to verify proper thread engagement.
• The positive stop at each end ensures that the rod is threaded to the proper depth.

Installation:

• Thread the specified CTUD (wider end up) onto the embedded anchor (in first floor applications) or the Strong-Rod from the level below. Position so that the activation pin faces out for easy access.
• Thread the Strong-Rod from the level above into the CTUD. The CTUD is correctly installed when the anchor or threaded rod is visible through both witness holes.
• Secure Strong-Rod at the level above with specified bearing plate and Isolator Nut. Attach Isolator Nut to sill plate above with #8 x 3" screw (included). Continue system installation at each level until the run is complete.
• Remove activation pin after level above is secured with Isolator Nut and prior to covering. IMPORTANT: Do not remove the activation pin until the ISOLATOR nut is installed at the level above.

Codes: ICC-ES ESR 2320, City of Los Angeles RR 25643; State of Florida FL10007

top Gallery:
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		CTUD Patent Pending Typical CTUD Installation

top Product Data:

1. Allowable tension capacities are for CTUD only.
2. No further steel stress increase allowed.
3. Thread specification for threaded rod must be UNC class 2A per ANSI/ASME B1.1.

top Related Catalog Pages (PDFs):

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C-ATS07 (Anchor Tiedown System), page 12 (242k)