1/4″-20 x 7/16″-14 Metal Coarse Thread Inserts (5 pcs.)
Diameter: 1/4″ Diameter 2: 7/16″ Material: Metal Thread Size: 20 (Coarse) Type: Thread Insert Box of 5. A thread insert is inserted into an object to add a threaded hole. They are used for repairing a stripped threaded hole, providing a more durable threaded hole in softer materials, and molding or casting threads into a workpiece, eliminating an operation.