Tie Rods (Double Ended)

Tie Rods (Double Ended) are threaded rods with threads at both ends for holding opposing form faces together. Specify thread form, diameter, length and rod profile for the formwork assembly.

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At a glance

Tie Rods (Double Ended) at a glance.

What it is

A double-ended form rod

Threaded rod component with threaded ends at both sides.

Physical function

Connects opposing form faces

Mating nuts and plates engage both ends across the form faces.

Configuration

Thread, diameter and profile

1/2 to 2-1/2 inch diameter; 3 to 20 feet length; UNC thread; round, TMT or rebar profile; plain, zinc-plated or galvanized finish.

Also known as

Also called coil rod in the US. Spanish-speaking crews call it tensor de encofrado.

US English: coil rodformwork tie rodconcrete tie rod
Español (US): tensor de encofrado

More names (3)

US English: formwork tie barshuttering tie barthreadbar

Trade names for the whole range ↗

How it works

Double-ended through the form

Thread the rod through pre-drilled holes in the form faces. At each end, a Tie Rod Nut and Plate Washer seat against opposite sides, drawing the faces together.

Threaded Rods
Choose fully threaded rods for rod-and-plate foundation assemblies, suspension systems, and adjustable supports where thread access along the full length matters.
Tie Rods (Double Ended) This page
Choose double-ended rods when you need to draw two form faces together: thread at each end, solid shank in the middle for wedging through the wall.

Common applications

Where it is used.

Application

Two-sided formwork tie

Connects opposing form faces under horizontal load during concrete placement.

Application

Modular wall and column panels

Spans wall and column panels with threaded ends engaging the mating form faces.

Application

Form-face alignment and closure

Works with plates and hardware to keep the connected form faces aligned and properly spaced.

What else are tie rods (double-ended) called?

In the US, they are called coil rods. In Spanish, they are tensor de encofrado. They are threaded rods for formwork assemblies.

What sizes and thread options do tie rods have?

Tie rods range from 1/2" to 2-1/2" in diameter (M12–M60 metric), 3' to 20' long (1–6 m), with UNC threads in V or coil profiles. Finishes are plain, zinc plated, or hot dip galvanized.

Concrete systems

Double-ended form-tie rod

Double-ended Tie Rods connect opposing form faces with Tie Rod Nuts and Plate Washers. Threaded Rods provide a single-ended option for other assemblies.

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Technical specifications