Thread Rolling

Thread Rolling

SEG can roll threads from 1/2″ to 6″ Diameter. All Materials that are ferrous and Non-Ferrous can be processed. American Standard, Metric & Acme, UNF, UNC, UNR, UNJ are the types of threads we can provide.

SEG’s thread-rolling equipment constantly maintains a high degree of accuracy and uniformity of parts. These machines can, for example, “repeat” within .00030 inch. Sixteen micro finishes on thread-rolled parts are not uncommon at SEG. During the rolling process  threads receive forging properties that help to greatly increase the material’s fatigue strength and the static loading at the root radius. A rolled thread will increase the thread strength by a minimum of 30% verses a cut thread. SEG uses both two- and three-die cylindrical thread-rolling machine.

SEG has accumulated probably the industry’s most comprehensive inventory of thread-rolling dies. The company works diligently to keep these dies continuously updated and maintained.