Heli-coil 3G-OTH-527883 — Technical Specifications
The HELI-COIL Thread Repair Kit (MPN 5521-20) is a tanged tang style insert and tool kit for repairing damaged threads in metal. It includes free-running, 18-8 stainless steel helical inserts with a coarse, right-hand thread size of 1 1/4"-7 (inch system). The kit comes with an STI tap of the same size, enabling restoration of original thread strength in metal components.
Technical Specifications
| Parameter | Value |
|---|---|
| Type | Free-Running, Stainless Steel |
| Brand | HELI-COIL |
| Finish Type | Plain |
| Thread Size | 1 1/4"-7 |
| Thread Type | Coarse |
| STI Tap Size | 1-1/4"-7 |
| Thread Direction | Right Hand |
| Compatible Material | Metal |
| Material Grade/Class | 18-8 |
| Insert Types Included | Helical Inserts |
| System Of Measurement | Inch |
| Manufacturer Part Number | 5521-20 |