COVID-19 Updates  |  As of 03/18/20
COVID-19 Updates  |  As of 03/18/20

U3400-S TPO

By Quote

The U3400-S TPO is a lightweight rooftop attachment system consisting of a U-Anchor 3000-S Series plate and cover membrane. The cover membrane is factory sealed to the top of the plate. The U3400-S TPO provides a positive, watertight, manufacturer accepted attachment for mechanically attached and fully adhered TPO single-ply membranes.


Product Specs

  • Fastener
    • 3/8″-16 x 1.5″ Attachment Bolt*
    • Material Type: 304 Stainless Steel


    • Dimensions: 8.128” x 5.47”
    • Fastener Hole Diameter: 17/64″ (12 holes)
    • Material Thickness: 0.047″ (1.194mm)
    • Material Type: Galvalume® AZ55

    Cover Membrane

    • Manufacturer: Brand Specific OR Generic
    • Color: Default White*
    • Length: 14.75’’
    • Width: 11.75’’
    • Thickness: Default 60 mil*


Packaging Specs

Sold Individually OR Full Box Quantity

  • Individual Weight: Approx. 1.1 lbs
  • Full Box Quantity: 10 units
  • Box Weight: Approx. 12 lbs
  • Box Dimensions: 19’’ x 14’’ x 14’’
  • Full Pallet Quantity: 30 boxes
  • Pallet Dimensions: 48’’ x 40’’ x 68’’


U-Anchor Attachment

The U3400-S TPO is attached by fastening through the roofing assembly into the structural decking with 2-12 approved fasteners. The membrane cover is then hot air welded around the perimeter to the roof membrane.
Fastener selection is dictated by the system assembly, deck type, and the project engineer.
Refer to installation instructions and the specified roofing material manufacturer requirements before installing.

Equipment Attachment

To securely mount your rooftop equipment to the U-Anchor, after its installed, the connection nut must be fastened to approximately 20-25 torque pounds.

Use a calibrated torque wrench during install to ensure appropriate results are achieved.


  • Lightweight: 9.92 oz. (281 grams).
  • Installs in less than 5 minutes.


Results are base on plate performance only.

  • Ultimate Load – Shear: 8600 lbs
  • Ultimate Load – Tension: 4600 lbs

Test was performed in accordance with: ICC-ES AC467 Section 3.2

Testing Approvals

  • Accepted – All Major Roofing Manufacturers

Individual deck assembly reports available upon request.


  • Standard 20 Year Material Only Warranty
By acceptance of any proposal, issuance of any order and/or payment of any invoice, the customer acknowledges and warrants that all statements or suggestions by Anchor Products or its affiliates of any type, amount, use or placement of products for customer’s projects is exclusively based on information provided by the customer. Customer waives all claims against Anchor Products or its affiliates related to or based on inaccuracies in the data provided by the customer. Customer further confirms it has not relied on Anchor Products or its affiliates for any engineering advice or conclusions.

© Anchor Products, LLC.