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. 291-896
Mfr. Part No.25043
BrandRecoil
HK$48.81
1 Bag of 10
Bag(s)
M4 x 0.7 4.2mm -
RS Stock No. 291-903
Mfr. Part No.25163
BrandRecoil
HK$136.78
1 Bag of 10
Bag(s)
M16 x 2 16.5mm -
RS Stock No. 528-659
Mfr. Part No.25063
BrandRecoil
HK$58.56
1 Bag of 10
Bag(s)
M6 x 1 6.3mm -
RS Stock No. 528-643
Mfr. Part No.25053
BrandRecoil
HK$55.81
1 Bag of 10
Bag(s)
M5 x 0.8 5.2mm -
RS Stock No. 291-880
Mfr. Part No.25033
BrandRecoil
HK$54.03
1 Bag of 10
Bag(s)
M3 x 0.5 3.2mm -
RS Stock No. 528-665
Mfr. Part No.25083
BrandRecoil
HK$64.74
1 Bag of 10
Bag(s)
M8 x 1.25 8.3mm -
RS Stock No. 528-671
Mfr. Part No.25103
BrandRecoil
HK$94.23
1 Bag of 10
Bag(s)
M10 x 1.5 10.4mm 15mm
RS Stock No. 528-687
Mfr. Part No.25123
BrandRecoil
HK$126.96
1 Bag of 10
Bag(s)
M12 x 1.75 12.5mm -
RS Stock No. 471-017
Mfr. Part No.41890050005
BrandBöllhoff
HK$2.147
Each (In a Pack of 20)
units
M5 x 0.8 5.2mm 5mm
RS Stock No. 175-0424
BrandRS PRO
HK$2.496
Each (In a Pack of 20)
units
M6 x 1 - 9mm
RS Stock No. 668-4673
Mfr. Part No.KNM12X1.75
BrandKeenserts
HK$320.50
1 Bag of 3
Bag(s)
M12 x 1.75 13.5mm -
RS Stock No. 668-4676
Mfr. Part No.KNM8X1.25
BrandKeenserts
HK$361.54
1 Bag of 5
Bag(s)
M8 x 1.25 9.5mm -
RS Stock No. 175-0425
BrandRS PRO
HK$3.139
Each (In a Pack of 20)
units
M8 x 1.25 - 12mm
RS Stock No. 471-005
Mfr. Part No.41890040006
BrandBöllhoff
HK$1.592
Each (In a Pack of 20)
units
M4 x 0.7 4.2mm 6mm
RS Stock No. 470-941
Mfr. Part No.41890040004
BrandBöllhoff
HK$1.592
Each (In a Pack of 20)
units
M4 x 0.7 4.2mm 4mm
RS Stock No. 470-856
Mfr. Part No.41890250375
BrandBöllhoff
HK$2.81
Each (In a Pack of 20)
units
M2.5 x 0.45 2.6mm 3.75mm
RS Stock No. 470-822
Mfr. Part No.41890250005
BrandBöllhoff
HK$2.558
Each (In a Pack of 20)
units
M2.5 x 0.45 2.6mm 5mm
RS Stock No. 175-0434
BrandRS PRO
HK$5.652
Each (In a Pack of 5)
units
M12 x 1.75 - 24mm
RS Stock No. 244-8460
Mfr. Part No.24043
BrandRecoil
HK$52.85
1 Bag of 10
Bag(s)
1/4-28 UNF 6.7mm -
RS Stock No. 291-919
Mfr. Part No.25203
BrandRecoil
HK$355.69
1 Bag of 10
Bag(s)
M20 x 2.5 20.75mm 30mm