Heli-Coil Thread Repair Kits, 1/4-20 CoarseSKU: M942755 5521-4
- M942755 5521-4
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Heli-Coil Inserts are precision-formed screw thread coils of stainless steel wire with a diamond-shaped cross section. When installed into Heli-Coil® tapped holes they provide permanent conventional 60° internal screw threads to fit any standard bolt or screw.
Includes 12 stainless steel inserts, tap & installation tool.