Heli-Coil R1185-1 Free-Running Helical Insert, 12-24, 1.5D, Pack of 12

Heli-Coil R1185-1 Free-Running Helical Insert, 12-24, 1.5D, Pack of 12

• Heli-Coil R1185-1 is a free-running helical insert designed for repairing or reinforcing 12-24 UNC internal threads in metal. This tanged stainless steel insert uses a 1.5D length, also listed as 21/64" or 0.324" overall length, and is supplied as a 12-piece R-Pack for thread repair work.
• Features:
  • 12-24 UNC thread size is designed to restore or reinforce matching internal threads in metal applications.
  • Free-running insert design provides a standard internal thread without locking torque for general fastener installation.
  • 1.5D insert length, listed as 21/64" or 0.324", provides the verified thread engagement length for this SKU.
  • Tanged insert design is intended for installation with the proper STI tap and threaded insert tooling.
  • Designed for use in metal thread repair and thread reinforcement where a compatible 12-24 STI tapped hole has been prepared.
• Specifications:
  • Manufacturer: Heli-Coil
  • Part Number: R1185-1
  • MPN: R1185-1
  • UPC: 025964120038
  • Product Type: Free-running helical insert
  • Thread Size: 12-24
  • Thread Type: UNC
  • Thread Direction: Right hand
  • Insert Length: 21/64"
  • Length Designation: 1.5D
  • Overall Length: 0.324"
  • Material: Stainless steel
  • Material Grade: 18-8 or 304 stainless steel
  • Finish: Plain
  • Tang Style: Tanged
  • Compatible Tap Size: 12-24 STI
  • Drill Size: #1
  • Outside Diameter: 0.276"
  • Quantity: 12 identical inserts
  • System Compatibility or Application: Designed for repairing or reinforcing compatible 12-24 threaded holes in metal after preparation with the proper STI tap and installation tooling.
• The Free-Running Helical Insert can also be referred to as 12-24 thread insert, stainless steel helical insert, tanged thread repair insert, UNC thread insert, and Heli-Coil repair insert.

Heli-Coil manufactures threaded inserts and thread repair systems for automotive, industrial, and maintenance applications. The brand is widely used for restoring damaged threads and strengthening tapped holes in metal components.

Q: Is Heli-Coil R1185-1 a locking insert?
A: No. Verified sources identify it as a free-running insert, which provides a standard internal thread without locking torque.

Q: What thread size does Heli-Coil R1185-1 repair?
A: It is designed for 12-24 UNC threads.

Q: Does this SKU include a tap or installation tool?
A: No. Verified sources identify this R-Pack as a 12-piece pack of identical inserts only.