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Drilled Shaft Video Wheel/Boot Video Unibar Video
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Our patented Quick-Lock Unibar® centralizers (Patent No. 10,151,113) are the answer to uniform reinforcement steel spacing requirements in single-bar foundation/tieback elements. They allow for minimum grout/concrete coverage and do not impede flow of grout within bore/drill hole and around tendon. Assemble quickly by simply snapping the two inverted identical halves together over the tendon/rebar and tying it on with tie wire, or with a zip tie threaded through the end tab slots.

To achieve proper design strength in any drilled and grouted/concreted hole, the tendon/rebar or anchor material must be centered in the shaft to allow minimum coverage throughout the length of the element. Our Quick-Lock Unibar® centralizers are made of durable, noncorrosive plastic and are designed for a variety of applications where concrete cover must be maintained.

Pieresearch Quick-Lock Unibar Centralizer product video

Building a strong foundation is only a few clicks away! Our quality products and ease of installation allows you to save time and money on the job site. Imagine the infinite opportunities to use Quick-Lock Unibar® Centralizer.

Tech Specs

* 60 parts per box. Box weight approximately 14 pounds. 1,800 parts per pallet.

** 42 parts per box. Box weight approximately 15 pounds. 1,470 parts per pallet.

Quick-Lock Unibar® Centralizers will accommodate Single Bar, Multi-Bar/Strand Anchors, Encapsulated (DCP) Anchors, and Steel or Plastic Pipe Applications. They are ideal for Soil Nails, Rock/Soil Anchors, Micro-Piles, and Auger-Cast Piles with single tension bars.


  • 2 identical halves
  • easy to snap together
  • made of durable non-corrosive plastic
  • can be attached with zip ties or tie wire
  • offset to fit between rebar threads
  • keeps single tendon/bar centered within a drill hole
  • ideal for soil nail applications
  • no nuts or bolts required
  • lightweight and economical

Placement Details

The lowest Quick-Lock Unibar® Centralizer should be installed approximately 1 feet from the end of the tendon/bar material. Each successive Quick-Lock Unibar® Centralizer should be placed at no greater than 10-foot intervals. The upper Quick-Lock Unibar© Centralizer should be approximately 1 feet below grout/concrete surface.

Our Fast Delivery Promise

We promise to deliver products on time to meet your deadline. Once pricing is confirmed, orders will be processed immediately (providing specified quantities are in-stock). If we need to fabricate a product, we will notify you when to expect the shipment to be ready. We can deliver to any location, using your preferred delivery method. Request a quote or place an order online, 24 hours a day, 7 days a week. Pre-approved accounts for payments are not required! We can accept Visa and MasterCard, in addition to traditional purchase orders. Need assistance? Speak to someone toll free by calling 800-342-2409.

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