Product details:
Time Fastener Company Time-Sert 5761 BIG-SERT Oversized Thread Repair Kit, 7/16-14 Size 7/16-14. Insert length .600 These kits are used for threads which have been previously repaired. These kits will repair holes that were repaired by Helicoil, Perma-coil, Uni-coil, Recoil or any other similar coil style insert that has failed.