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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Description Price Thread Size Drill Size Thread Length
RS Stock No. 668-4711
Mfr. Part No.KNHM12X1.75
BrandKeenserts
TWD1,202.00
1 Bag of 3
Bag(s)
M12 x 1.75 15.5mm -
RS Stock No. 175-0431
BrandRS PRO
TWD11.30
Each (In a Pack of 20)
units
M6 x 1 - 12mm
RS Stock No. 470-850
Mfr. Part No.41890080012
BrandBöllhoff
TWD8.00
Each (In a Pack of 10)
units
M8 x 1.25 8.4mm 12mm
RS Stock No. 175-0432
BrandRS PRO
TWD13.60
Each (In a Pack of 20)
units
M8 x 1.25 - 16mm
RS Stock No. 470-979
Mfr. Part No.41890050010
BrandBöllhoff
TWD7.90
Each (In a Pack of 20)
units
M5 x 0.8 5.2mm 10mm
RS Stock No. 470-957
Mfr. Part No.41890100010
BrandBöllhoff
TWD8.00
Each (In a Pack of 10)
units
M10 x 1.5 10.5mm 10mm
RS Stock No. 470-884
Mfr. Part No.41890120012
BrandBöllhoff
TWD11.70
Each (In a Pack of 10)
units
M12 x 1.75 12.5mm 12mm
RS Stock No. 528-671
Mfr. Part No.25103
BrandRecoil
TWD349.00
1 Bag of 10
Bag(s)
M10 x 1.5 10.4mm 15mm
RS Stock No. 668-4708
Mfr. Part No.KNHM8X1.25
BrandKeenserts
TWD1,577.00
1 Bag of 5
Bag(s)
M8 x 1.25 11.5mm -
RS Stock No. 528-643
Mfr. Part No.25053
BrandRecoil
TWD204.00
1 Bag of 10
Bag(s)
M5 x 0.8 5.2mm -
RS Stock No. 668-4667
Mfr. Part No.KNM6X1.0
BrandKeenserts
TWD1,223.00
1 Bag of 5
Bag(s)
M6 x 1 7.5mm -
RS Stock No. 470-985
Mfr. Part No.41890060006
BrandBöllhoff
TWD7.10
Each (In a Pack of 20)
units
M6 x 1 6.3mm 6mm
RS Stock No. 470-866
Mfr. Part No.41890250025
BrandBöllhoff
TWD8.70
Each (In a Pack of 20)
units
M2.5 x 0.45 2.6mm 2.5mm
RS Stock No. 175-0429
BrandRS PRO
TWD11.30
Each (In a Pack of 20)
units
M4 x 0.7 - 8mm
RS Stock No. 244-8448
Mfr. Part No.23083
BrandRecoil
TWD471.00
1 Bag of 10
Bag(s)
1/2-13 UNC 13mm -
RS Stock No. 291-903
Mfr. Part No.25163
BrandRecoil
TWD498.00
1 Bag of 10
Bag(s)
M16 x 2 16.5mm -
RS Stock No. 668-4702
Mfr. Part No.KNHM10X1.5
BrandKeenserts
TWD992.00
1 Bag of 3
Bag(s)
M10 x 1.5 13.5mm -
RS Stock No. 470-838
Mfr. Part No.41890030045
BrandBöllhoff
TWD7.20
Each (In a Pack of 20)
units
M3 x 0.5 3.2mm 4.5mm
RS Stock No. 244-8426
Mfr. Part No.23053
BrandRecoil
TWD231.00
1 Bag of 10
Bag(s)
5/16-18 UNC 8.3mm -
RS Stock No. 291-880
Mfr. Part No.25033
BrandRecoil
TWD196.00
1 Bag of 10
Bag(s)
M3 x 0.5 3.2mm -