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> 120 helicoil screw thread repair insert 5/16 - 18 x 1/4
120 helicoil screw thread repair insert 5/16 - 18 x 1/4
120 HELICOIL SCREW THREAD REPAIR INSERT 5/16" -18
This listing is for 120 new inserts. Each is threaded 5/16" -18 and is approx 1/4" un-installed length long. Screw thread inserts are used when the original thread of a hole has been worn and is no longer useable. When they are installed into Heli-Coil tapped holes, they provide permanent conventional 60' internal screw threads that accommodate any standard bolt or screw.
