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Helical Splice

Helical rod splices, also known as helical inserts or threaded inserts, are mechanical devices used to reinforce and repair threaded holes in various materials. They are typically used in applications where the original threads have been damaged or are weak, and a stronger and more durable connection is required.

Helical Rod Splices

Also known as preforms, screw joints come in a range of application-specific designs.

Preforms are designed to clamp evenly to prevent conductor deformation, and also offer unique designs that eliminate bolts, nuts, washers and other components, which simply need to be wrapped and clamped under tension. It's easy to select the correct part with size-based color-coded marking

helical rod splices are used in horizontal twin wire harnesses.

Helical rod splices consist of a coil-shaped insert made of a strong and durable material, such as stainless steel or hardened steel. The insert features external threads that match the original hole or a larger size, and internal threads that are compatible with the fastener to be used.

To install a helical rod splice, the damaged or weak hole is first drilled out to a larger diameter. Then, the helical insert is threaded into the enlarged hole using a special installation tool. As the insert is twisted into place, it cuts new threads into the surrounding material, providing a secure and reliable connection.