PRO-THREAD THREAD REPAIR KIT - INCLUDES: TAP, INSTALLATION TOOL - UNF 5/16-24", (3) INSERTS

Brand: CTA
SKU: CTA-34059
MPN: 34059

Features & Benefits

  • Pro-Thread Kits offer a cost effective method of repairing and strengthening threads in various materials such as cast iron, steel, aluminum, and other metals and plastics
  • Effective for automotive repair, spark plug ports, outdoor power equipment, motorcycle repairs, farm equipment, and more!
  • Easy to install, just DRILL, TAP, INSERT, SNAP!
  • Pro-Thread inserts provide a permanent wear resistant internal thread
  • Stainless steel inserts resist the effects of temperature and corrosion 
  • Wire inserts help to compensate for the thread and pitch angle errors
  • Repaired threads are generally stronger than the original parent material thread



    • Thread Size: National Fine UNF 1/4-28
    • Includes tap, installation tool and set of inserts
    • 1.5D, 0.3750" OAL inserts
    • Tapping drill required: 6.6mm or 17/64"
    • CTA Insert Replacements: Part #24049