Form Ties DYWIDAG. WebThru Ties. The DYWIDAG thru tie system is available with the DYWIDAG Threadbar™, PVC sleeves, and reusable form tie cones. We manufacture the flexible cones in a fully-automated production process. This system allows for fast and easy installation and stripping—and ensures accurate form spacing.

WebA form tie is an accessory used in formwork, used to hold the concrete wall forms firmly against the lateral pressure of freshly placed plastic concrete. They maintain equal space between the forms which results in uniform thickness of walls.