24/7 Phone Services 1-514-519-0568
Your Cart (Items: 0)

No products in the cart.

info@gestionspcstructural.com 4900 Chemin du Coteau-de-Trèfle S, Carignan, QC J3L 0K8

Our Products

ATUD/TUD Take-Up Device

Share This Post:


The ATUD and TUD expanding take-up devices are suitable for rod diameters from 1/2 ” up to 1 3/4 ” and shrinkage up to 3″. Expanding screw-style take-up devices provide the lowest device displacements. For installation, ensure that the activation pin is pointing up and facing toward the inside of the building space. The pin can be pulled anytime after the nut has been tightened onto the top bearing plate and must be pulled by the time the building is fully loaded. Shrinkwrap should remain on the device until the pin is ready to be pulled. Before activating an ATUD make sure the pin on the take-up device on the floor below has been pulled.

Key Features

ATUD Features

  • Easy to install
  • Lowest device deflection
  • Fits up to 1-3/4 inch diameter rods

TUD Features

  • Easy to install
  • Lowest device deflection
  • Coated for corrosion protection and lubricity
  • Fits up to 1-1/4 inch diameter rods


ATUD—ASTM B221 6061-T6511 Aluminum; TUD—ASTM A311 Class B, Grade 1144


ATUD—None; TUD—Corrosion Resistant Finish


  1. Install the specified bearing plate over the threaded rod onto the bottom plate of the wall.
  2. Install ATUD/TUD, with either end up, over the threaded rod and onto the bearing plate with the activation pin facing out.
  3. Install specified plate washer and then nut on top.
  4. Finger-tighten nut plus an additional 1/3- to 1/2-turn with a wrench.
  5. Remove shrink wrap from ATUD/TUD.
    IMPORTANT: Do not remove activation pin until nut is installed.
  6. Remove activation pin.
Home Products Cart Account