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WIRE THREAD INSERTS

Fabory offers a choice between AMECOIL and V-COIL wire thread inserts, which are compatible with many other renowned brands, such as HELICOIL.

APPLICATION

AMECOIL and V-COIL wire thread inserts are not only economical for recovering worn or damaged screw threads, but they are also capable of achieving high-loadable internal threads in metal and non-metal materials. These wire thread inserts can be used at temperatures from -40°C to +400°C.

MATERIAL

The wire thread inserts are produced from a stainless steel A2 wire with a diamond cross-section that is wound in a coil like a spring.

THREADS

The internal screw thread of the nut part of the wire thread insert conforms to the normal tolerance field 6H. For details concerning the external screw thread, see DIN 8140-2.

ASSEMBLY

For assembly of AMECOIL and V-COIL wire thread inserts, the assembly sequence should be references:

  • Drill the hole (do not countersink).
  • Tap the thread with the special tap; the thread sizes of the special AMECOIL and V-COIL taps are larger than those of a standard tap.
  • Screw in the wire thread insert with the corresponding fitting tool by 1/4 to 1/2 pitch under the surface of the part.
  • Break off the engaging stem of the wire thread insert up to ø 18 mm after fitting with the tang break; for sizes larger than M18 through 5/8, UNC/UNF long pointed pliers can be used.
  • Ready to begin assembly.
  • Disassembly of a wire thread insert is possible with a special extractor.