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Thread Rolling

Schaffner Machine Company specializes in standard and ACME rolled threads. We work with outside diameters up to 1″ on standard threads and 3/4″ on ACME threads. We can thru-feed bars up to 14′ in length or add as little as 3/16″ of thread to your part with in-feed thread rolling. As your complete machining solution, we can provide CNC turning and milling services for secondary operation on your threaded parts. Whether you need a dozen custom threaded eye-bolts or thousands of turnbuckles SMC is your complete thread rolling solution.

Thread Rolling

The benefits of thread rolling over cut threads

  • Cost Savings: less raw material needed (typically 15% to 20% savings) and no wasted material
  • Precision: smooth uniform threads over long runs
  • Quality: superior thread finish extends the life of your parts
  • Strength: cold-working the material during thread rolling results in increased tensile load, tensile stress, and structural integrity than in an equivalent cut thread (e.g. ¾-10 UNF 2A)

Thread Types:

  • UN Threads (UNJ, UNF, UNC, UNS & UNR)
  • Military Threads
  • ACME Threads
  • Metric Threads
  • Multi-lead Threads
  • Knurls
  • Both right-hand and left-hand threads

Types of Parts:

  • Lead Screw
  • Turnbuckles
  • Eyebolts, Fasteners, Threaded Studs, Bolts
  • Actuator Screws
  • All Thread (i.e. 12’ fully threaded bars)