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75 helicoil screw thread repair insert 5/8" 7/8" 1/2-13


75 HELICOIL SCREW THREAD REPAIR INSERT 5/8" 7/8" 1/2-13
This listing is for 75 new inserts. Each insert is thread size 1/2-13. There are 6 inserts 1/2" long, 31 inserts 5/8" long, and 38 inserts 7/8" 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.



75 helicoil screw thread repair insert 5/8