Brand Name: Heli-Coil
*External Thread Length: 1/4 in.
*Material: Stainless Steel
*Product Type: Thread Repair Kit
*Nominal Thread Size: 20
*Packaging Type: Carded
*English or Metric: English
*Corresponding Tap Included: Yes
*Number in Package: 12 pk
*Internal Thread Length: 0.375 in.
*Insert Tool Included: Yes
*Internal Depth: 0.4 in.