HeliCoil Screw Thread Insert Thread Repair Kit #5401-4,
1/4 – 20 UNC Threads, 0.375″ Insert Length

Features:

• Use for O.E.M. applications, or in repairs.
• Provides 60 internal screw threads.
• ISO 9001 Certified.
• Precision formed screw thread coils of 18-8 (Type 302/304) stainless steel wire having a diamond shaped cross-section.
• Cold rolled from round wire. Tensile strength of approx. 200,000 to 250,000 P.S.I. a hardness of 43-50 RC.
• Surface finish is 8-16 microinches. This wire is then wound into a spiral coil which, when installed into Heli-Coil tapped holes, provides permanent conventional 60 Internal Screw threads.
• The assembled insert accommodates any standard bolt or screw to MIL-S-7742 and MIL-S-8879 (UNJ controlled radius root) male threaded member.
• Inserts sold individually.

Each Kit Includes:

• Tap
• Drill
• Inserting Tool
• Inserts

Specifications:

Manufacturer Part # 5401-4 Insert Thread Size (Inch) 1/4-20 Includes Drill Yes Includes Tap Yes Includes Installation Tool Yes Includes Tang Removal Tool Yes Kit Type Threaded Insert Number of Inserts 36 Long Insert Size 0.500 Short Insert Size 0.250 Insert Length (Decimal Inch) 0.3750 Number of Inserts for Each Size Length 12 Thread Standard UNC

See all HeliCoil Screw Thread Insert Thread Repair Kits