Cold rolled steel tie rod is one kind of the concrete tie rods. It is made of steel #45 or Q235 with different diameters.
A lot of related accessories are available, such as hot rolled tie rod, wing nut, tie nut, hex nut, connection nut, water stop, formwork clamp, steel cone, etc.
All of the tie rods and related accessories are applicable to all kinds of concrete formwork & shuttering system.
The cold rolled tie rods are threaded from a steel round bar structure. The different steel structure grade makes the conceret tie rods with different breaking load. Take the D15(15/17mm) tie rod for example:
The ultimate rest result of D15 concrete tie rod by Steel grade Q235: 95Kn
The ultimate rest result of D15 concrete tie rod by Steel grade #45: 145Kn