Heli-Coil K1185-20 Helical Insert, 1-1/4 inch - 7 UNC Thread, 1-7/8 inch Overall Length

Heli-Coil K1185-20 Helical Insert, 1-1/4 inch - 7 UNC Thread, 1-7/8 inch Overall Length

• Heli-Coil K1185-20 is a helical insert designed to restore or create 1-1/4 inch - 7 UNC internal threads in a tapped hole. This free-running stainless steel insert has a 1-7/8 inch overall length for strong thread engagement in thread repair and reinforcement work.
• Features:
  • 1-1/4 inch - 7 UNC thread size helps repair damaged internal threads to accept standard 1-1/4 inch - 7 fasteners
  • 1-7/8 inch overall length supports deeper thread engagement for durable repairs
  • Stainless steel construction helps resist corrosion and wear in maintenance and industrial environments
  • Free-running insert style allows smooth assembly and removal without added locking friction
  • Tanged design supports installation with compatible insert tools and controlled tang break-off after seating
• Specifications:
  • Manufacturer: Heli-Coil
  • Part Number: HEK1185-20
  • MPN: HEK1185-20
  • UPC: 259641401046
  • Category: Fasteners
  • Subcategory: Thread Repair
  • Product Type / Function: Helical thread insert, free-running
  • Thread Size: 1-1/4 inch - 7
  • Thread Type: UNC
  • System of Measurement: inch
  • Overall Length: 1-7/8 inches
  • Material / Finish: 304 stainless steel, bright and uncoated
  • Packaging Type: each
  • Alternate Part Numbers / Cross References: K1185-20
  • System Compatibility / Application: Designed for restoring or creating 1-1/4 inch - 7 UNC internal threads in properly prepared tapped holes
• The Heli-Coil HEK1185-20 helical insert can also be referred to as a wire thread insert, a thread repair insert, a free-running helical insert, a 1-1/4 inch - 7 UNC insert, and a stainless steel threaded insert.

Heli-Coil is a wire threaded insert systems brand within Stanley Engineered Fastening, supplying threaded insert solutions and installation tools used for thread repair and thread reinforcement across industrial, automotive, and maintenance applications.

Q: What thread size is this insert designed for?
A: It is designed for 1-1/4 inch - 7 UNC internal threads.

Q: Is this a locking insert?
A: No. This is a free-running (non-locking) helical insert intended for standard assembly without prevailing torque.

Q: What do I need to install it correctly?
A: Use the correct size STI tap and the matching installation tool for a 1-1/4 inch - 7 wire insert, and follow the manufacturer installation procedure including tang break-off after the insert is seated.