Heli-Coil R389-4 R-Pack Free Running Thread Repair Inserts, 1/4-24 UNF, 2D Length, Pack of 12

Heli-Coil R389-4 R-Pack Free Running Thread Repair Inserts, 1/4-24 UNF, 2D Length, Pack of 12

• Heli-Coil R389-4 is an R-Pack of free running wire thread repair inserts for restoring damaged 1/4-24 UNF internal threads. The 2D length insert design provides thread reinforcement for service repairs and maintenance work, helping return stripped or worn threads to a usable 1/4-24 size.
• Features:
  • Thread Size: 1/4-24 UNF insert restores internal threads for fasteners that use 1/4-24 UNF threads.
  • Insert Length: 2D length supports thread engagement for common repair applications.
  • Free Running style is designed for standard thread repair where prevailing torque locking is not required.
  • Wire thread insert construction helps reinforce the repaired thread to support repeated assembly and disassembly.
  • Application: Designed for thread repair in compatible materials, not a replacement part for a specific vehicle or tool model.
• Specifications:
  • Manufacturer: Heli-Coil
  • Part Number: R389-4
  • MPN: R389-4
  • UPC: 025964150011
  • Product Name: R-Pack Free Running Thread Repair Inserts
  • Category: Fasteners
  • Subcategory: Thread Repair
  • Product Type or Function: Wire Thread Repair Insert
  • Thread Size: 1/4-24 UNF
  • Insert Length: 2D
  • Pack Quantity: 12 Inserts
  • System Compatibility or Application: Designed to restore damaged internal threads to 1/4-24 UNF using a compatible Heli-Coil installation process
• The R-Pack Free Running Thread Repair Inserts can also be referred to as 1/4-24 thread repair inserts, wire thread inserts, helical thread inserts, Heli-Coil inserts, and free running thread inserts.

Heli-Coil is a thread repair and thread reinforcement brand associated with industrial fastening systems, supplying wire thread inserts and related solutions used in maintenance, repair, and manufacturing environments.

Q: What thread size does Heli-Coil R389-4 repair?
A: It is designed to restore internal threads to 1/4-24 UNF.

Q: What does 2D mean for this insert?
A: 2D indicates the insert length is two times the nominal thread diameter, which is a common length designation for wire thread inserts.

Q: How many inserts are included in R389-4?
A: R389-4 is packaged as 12 inserts per pack.