Thread Repair Inserts

Threaded inserts are formed from high quality stainless steel wire with a diamond shaped cross section, wound to the shape of a spring thread. They provide a permanent and wear resistant thread in the parent material that is generally stronger than the original thread. The inserts are designed to be greater in diameter than the tapped hole and compress as they are installed.


How do they work?

Drill
• Drill to clear out the damaged thread id required
Tap
• Use a thread insert tap to match the size the of the bolt
Install
• Wind insert in with light downward pressure until 1/4 to 1/2 turn below the surface, driving tang towards the bottom of the hole.
Remove Tang
• Remove tool and sit back on top of tang. Tap down sharply. Do not try to twist tang off. For sparkplug and large fine thread inserts, use long nose pliers and pull tang out.

What are the key features?
• Size
• Thread length
• Locking torque

What different types are there?

• Free running inserts which provide a standard female thread
• Locking inserts which provide a locking function for the female thread when the fasteners installed

Which application would you use it?

• Automotive
• Industrial Electronics
• Consumer Electronics
• Aerospace – Avionics, Engines, Airframe
• Ship Building
• Defence
• Power Generation
• Transport
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Part Details Brand Thread Size Drill Size Thread Length
Recoil Thread Repair Insert, M3 x 0.5, Drill Size 3.2mm Recoil M3 x 0.5 3.2mm -
Recoil Thread Repair Insert, M8 x 1.25, Drill Size 8.3mm Recoil M8 x 1.25 8.3mm -
Recoil Thread Repair Insert, M6 x 1, Drill Size 6.3mm Recoil M6 x 1 6.3mm -
Böllhoff Thread Repair Insert, M4 x 0.7, Drill Size 4.2mm Böllhoff M4 x 0.7 4.2mm 6mm
Böllhoff Thread Repair Insert, M3 x 0.5, Drill Size 3.2mm Böllhoff M3 x 0.5 3.2mm 4.5mm
Recoil Thread Repair Insert, M4 x 0.7, Drill Size 4.2mm Recoil M4 x 0.7 4.2mm -
Böllhoff Thread Repair Insert, M6 x 1, Drill Size 6.3mm Böllhoff M6 x 1 6.3mm 9mm
RS PRO Thread Repair Insert, M8 x 1.25 RS Pro M8 x 1.25 - 16mm
Böllhoff Thread Repair Insert, M4 x 0.7, Drill Size 4.2mm Böllhoff M4 x 0.7 4.2mm 8mm
Böllhoff Thread Repair Insert, M3 x 0.5, Drill Size 3.2mm Böllhoff M3 x 0.5 3.2mm 3mm
Böllhoff Thread Repair Insert, M6 x 1, Drill Size 6.3mm Böllhoff M6 x 1 6.3mm 12mm
Recoil Thread Repair Insert, 5/16-24 UNF, Drill Size 8.3mm Recoil 5/16-24 UNF 8.3mm -
Recoil Thread Repair Insert, M10 x 1.5, Drill Size 10.4mm Recoil M10 x 1.5 10.4mm 15mm
Recoil Thread Repair Insert, M5 x 0.8, Drill Size 5.2mm Recoil M5 x 0.8 5.2mm -
Böllhoff Thread Repair Insert, M3 x 0.5, Drill Size 3.2mm Böllhoff M3 x 0.5 3.2mm 6mm
Böllhoff Thread Repair Insert, M5 x 0.8, Drill Size 5.2mm Böllhoff M5 x 0.8 5.2mm 7.5mm
Böllhoff Thread Repair Insert, M4 x 0.7, Drill Size 4.2mm Böllhoff M4 x 0.7 4.2mm 4mm
Böllhoff Thread Repair Insert, M8 x 1.25, Drill Size 8.4mm Böllhoff M8 x 1.25 8.4mm 8mm
Camloc by Alcoa Thread Repair Insert, M6 x 1, Drill Size 7.5mm Camloc by Alcoa M6 x 1 7.5mm -
Böllhoff Thread Repair Insert, M5 x 0.8, Drill Size 5.2mm Böllhoff M5 x 0.8 5.2mm 5mm
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