Collection: Thread Repair - Inserts - Keylocking
12 Products in this selection
- Steel or 303 Stainless Steel as indicated in the tables. Also known as keenserts.
- Steel or 303 Stainless Steel as indicated in the tables
- Maximum strength and reliability.
- Positive mechanical lock against rotation:.
- The insert kees are driven down into the tapped threads of the parent material during installation to securely lock the insert against rotation.
- Inserts with internal thread lock are designed to securely lock a bolt when it is entered into the insert only a few turns.
Additional resources:
Keysteel Catalogue PDF
A more comprehensive listing may be found on the MBA Minibearings main store at Thread Repair - Inserts - Keylocking.
Keysteel Catalogue PDF
A more comprehensive listing may be found on the MBA Minibearings main store at Thread Repair - Inserts - Keylocking.
Internal Thread | External Thread | Length | Tap Drill Diameter | Countersink Diameter | Locking Keys |
Indicative Image |
---|---|---|---|---|---|---|
M4 (4x0.7mm)
|
M8 x 1.25
|
8.000
mm |
6.90
mm |
8.250
mm |
4
|
![]() |
Material: Steel Tapped Hole Depth: 9.500 mm Removal Drill Size: 5.500 mm Removal Drill Depth: 4.000 mm Installation Tool: KLI-64763RS | ||||||
Part Number: KLI-040M-080-08 Inserts Thread Repair - M4 -4x0.7mm- M8 x 1.25 8 mm - Steel
2 Available Now | Further orders can be expected around Fri, May 02, 2025 Regular price
$45.68 AUD
Regular price
Unit price
/
per
Each
|
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Internal Thread | External Thread | Length | Tap Drill Diameter |
Indicative Image |
||
M4 (4x0.7mm)
|
M8 x 1.25
|
8.000
mm |
6.90
mm |
![]() |
||
Material: Steel Countersink Diameter: 8.250 mm Locking Keys: 4 Tapped Hole Depth: 9.500 mm Removal Drill Size: 5.500 mm Removal Drill Depth: 4.000 mm Installation Tool: KLI-64763RS | ||||||
Part Number: KLI-040M-080-08 Inserts Thread Repair - M4 -4x0.7mm- M8 x 1.25 8 mm - Steel
2 Available Now | Further orders can be expected around Fri, May 02, 2025 Regular price
$45.68 AUD
Regular price
Unit price
/
per
Each
|
||||||
|
||||||
M5 (5x0.8mm)
|
M8 x 1.25
|
8.00
mm |
6.90
mm |
8.25
mm |
2
|
![]() |
Material: Stainless Steel Tapped Hole Depth: 9.50 mm Removal Drill Size: 5.50 mm Removal Drill Depth: 4.00 mm Installation Tool: KLI-64751RS | ||||||
Part Number: KLI-050M-080-08-SS Inserts Thread Repair - M5 -5x0.8mm- M8 x 1.25 8 mm - Stainless Steel
1 Available Now | Further orders can be expected around Sun, May 18, 2025 Regular price
$33.86 AUD
Regular price
Unit price
/
per
Each
|
||||||
M5 (5x0.8mm)
|
M8 x 1.25
|
8.00
mm |
6.90
mm |
![]() |
||
Material: Stainless Steel Countersink Diameter: 8.25 mm Locking Keys: 2 Tapped Hole Depth: 9.50 mm Removal Drill Size: 5.50 mm Removal Drill Depth: 4.00 mm Installation Tool: KLI-64751RS | ||||||
Part Number: KLI-050M-080-08-SS Inserts Thread Repair - M5 -5x0.8mm- M8 x 1.25 8 mm - Stainless Steel
1 Available Now | Further orders can be expected around Sun, May 18, 2025 Regular price
$33.86 AUD
Regular price
Unit price
/
per
Each
|
||||||
|
||||||
M5 (5x0.8mm)
|
M8 x 1.25
|
8.000
mm |
6.90
mm |
8.250
mm |
4
|
![]() |
Material: Steel Tapped Hole Depth: 9.500 mm Removal Drill Size: 5.500 mm Removal Drill Depth: 4.000 mm Installation Tool: KLI-64751RS | ||||||
Part Number: KLI-050M-080-08 Inserts Thread Repair - M5 -5x0.8mm- M8 x 1.25 8 mm - Steel
6 Available Now | Further orders can be expected around Fri, May 02, 2025 Regular price
$13.14 AUD
Regular price
Unit price
/
per
Each
|
||||||
M5 (5x0.8mm)
|
M8 x 1.25
|
8.000
mm |
6.90
mm |
![]() |
||
Material: Steel Countersink Diameter: 8.250 mm Locking Keys: 4 Tapped Hole Depth: 9.500 mm Removal Drill Size: 5.500 mm Removal Drill Depth: 4.000 mm Installation Tool: KLI-64751RS | ||||||
Part Number: KLI-050M-080-08 Inserts Thread Repair - M5 -5x0.8mm- M8 x 1.25 8 mm - Steel
6 Available Now | Further orders can be expected around Fri, May 02, 2025 Regular price
$13.14 AUD
Regular price
Unit price
/
per
Each
|
||||||
|
||||||
M6 (6x1mm)
|
M10 x 1.25
|
10.00
mm |
8.80
mm |
10.25
mm |
2
|
![]() |
Material: Stainless Steel Tapped Hole Depth: 11.50 mm Removal Drill Size: 7.50 mm Removal Drill Depth: 4.75 mm | ||||||
Part Number: KLI-060M-100-10-SS Inserts Thread Repair - M6 -6x1mm- M10 x 1.25 10 mm - Stainless Steel
1 Available Now | Further orders can be expected around Sun, May 18, 2025 Regular price
$31.05 AUD
Regular price
Unit price
/
per
Each
|
||||||
M6 (6x1mm)
|
M10 x 1.25
|
10.00
mm |
8.80
mm |
![]() |
||
Material: Stainless Steel Countersink Diameter: 10.25 mm Locking Keys: 2 Tapped Hole Depth: 11.50 mm Removal Drill Size: 7.50 mm Removal Drill Depth: 4.75 mm | ||||||
Part Number: KLI-060M-100-10-SS Inserts Thread Repair - M6 -6x1mm- M10 x 1.25 10 mm - Stainless Steel
1 Available Now | Further orders can be expected around Sun, May 18, 2025 Regular price
$31.05 AUD
Regular price
Unit price
/
per
Each
|
||||||
|
||||||
M6 (6x1mm)
|
M10 x 1.25
|
10.000
mm |
8.80
mm |
10.250
mm |
4
|
![]() |
Material: Steel Tapped Hole Depth: 11.500 mm Removal Drill Size: 7.500 mm Removal Drill Depth: 4.750 mm Installation Tool: KLI-64752RS | ||||||
Part Number: KLI-060M-100-10 Inserts Thread Repair - M6 -6x1mm- M10 x 1.25 10 mm - Steel
1 Available Now | Further orders can be expected around Fri, May 02, 2025 Regular price
$15.05 AUD
Regular price
Unit price
/
per
Each
|
||||||
M6 (6x1mm)
|
M10 x 1.25
|
10.000
mm |
8.80
mm |
![]() |
||
Material: Steel Countersink Diameter: 10.250 mm Locking Keys: 4 Tapped Hole Depth: 11.500 mm Removal Drill Size: 7.500 mm Removal Drill Depth: 4.750 mm Installation Tool: KLI-64752RS | ||||||
Part Number: KLI-060M-100-10 Inserts Thread Repair - M6 -6x1mm- M10 x 1.25 10 mm - Steel
1 Available Now | Further orders can be expected around Fri, May 02, 2025 Regular price
$15.05 AUD
Regular price
Unit price
/
per
Each
|
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|
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1/4-20 UNC (6.35mm)
|
3/8-16 UNC (9.53mm)
|
9.398
mm |
8.43
mm |
9.652
mm |
4
|
![]() |
Material: Steel Tapped Hole Depth: 10.922 mm Removal Drill Size: 7.144 mm Removal Drill Depth: 3.175 mm Installation Tool: KLI-64722RS | ||||||
Part Number: KLI-064C-095-09 Inserts Thread Repair - 1/4-20 UNC -6.35mm- 3/8-16 UNC -9.53mm- 9.398 mm - Steel
10 Available Now | Further orders can be expected around Fri, May 02, 2025 Regular price
$9.59 AUD
Regular price
Unit price
/
per
Each
|
||||||
1/4-20 UNC (6.35mm)
|
3/8-16 UNC (9.53mm)
|
9.398
mm |
8.43
mm |
![]() |
||
Material: Steel Countersink Diameter: 9.652 mm Locking Keys: 4 Tapped Hole Depth: 10.922 mm Removal Drill Size: 7.144 mm Removal Drill Depth: 3.175 mm Installation Tool: KLI-64722RS | ||||||
Part Number: KLI-064C-095-09 Inserts Thread Repair - 1/4-20 UNC -6.35mm- 3/8-16 UNC -9.53mm- 9.398 mm - Steel
10 Available Now | Further orders can be expected around Fri, May 02, 2025 Regular price
$9.59 AUD
Regular price
Unit price
/
per
Each
|
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|
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5/16-24 UNF (7.94mm)
|
7/16-14 UNC (11.11mm)
|
10.922
mm |
10.00
mm |
11.176
mm |
4
|
![]() |
Material: Steel Tapped Hole Depth: 12.700 mm Removal Drill Size: 8.731 mm Removal Drill Depth: 4.763 mm Installation Tool: KLI-64723RS | ||||||
Part Number: KLI-079F-111-11 Inserts Thread Repair - 5/16-24 UNF -7.94mm- 7/16-14 UNC -11.11mm- 10.922 mm - Steel
12 Available Now | Further orders can be expected around Fri, May 02, 2025 Regular price
$5.59 AUD
Regular price
Unit price
/
per
Each
|
||||||
5/16-24 UNF (7.94mm)
|
7/16-14 UNC (11.11mm)
|
10.922
mm |
10.00
mm |
![]() |
||
Material: Steel Countersink Diameter: 11.176 mm Locking Keys: 4 Tapped Hole Depth: 12.700 mm Removal Drill Size: 8.731 mm Removal Drill Depth: 4.763 mm Installation Tool: KLI-64723RS | ||||||
Part Number: KLI-079F-111-11 Inserts Thread Repair - 5/16-24 UNF -7.94mm- 7/16-14 UNC -11.11mm- 10.922 mm - Steel
12 Available Now | Further orders can be expected around Fri, May 02, 2025 Regular price
$5.59 AUD
Regular price
Unit price
/
per
Each
|
||||||
|
||||||
M8 (8x1.25mm)
|
M14 x1.5
|
14.00
mm |
12.80
mm |
14.25
mm |
4
|
![]() |
Material: Stainless Steel Tapped Hole Depth: 15.50 mm Removal Drill Size: 11.50 mm Removal Drill Depth: 4.75 mm Installation Tool: KLI-64766RS | ||||||
Part Number: KLI-080M-140-14-SS Inserts Thread Repair - M8 -8x1.25mm- M14 x1.5 14 mm - Stainless Steel
3 Available Now | Further orders can be expected around Fri, May 02, 2025 Regular price
$49.59 AUD
Regular price
Unit price
/
per
Each
|
||||||
M8 (8x1.25mm)
|
M14 x1.5
|
14.00
mm |
12.80
mm |
![]() |
||
Material: Stainless Steel Countersink Diameter: 14.25 mm Locking Keys: 4 Tapped Hole Depth: 15.50 mm Removal Drill Size: 11.50 mm Removal Drill Depth: 4.75 mm Installation Tool: KLI-64766RS | ||||||
Part Number: KLI-080M-140-14-SS Inserts Thread Repair - M8 -8x1.25mm- M14 x1.5 14 mm - Stainless Steel
3 Available Now | Further orders can be expected around Fri, May 02, 2025 Regular price
$49.59 AUD
Regular price
Unit price
/
per
Each
|
||||||
|
||||||
M10 Fine (10x1.25mm)
|
M14 x1.5
|
14.000
mm |
12.80
mm |
14.250
mm |
4
|
![]() |
Material: Steel Tapped Hole Depth: 15.500 mm Removal Drill Size: 11.500 mm Removal Drill Depth: 4.750 mm Installation Tool: KLI-64755RS Non Standard | ||||||
Part Number: KLI-100MF-140-14 (2 Pcs) Inserts Thread Repair - M10 Fine -10x1.25mm- M14 x1.5 14 mm - Steel
3 units (6 pcs) Available Now | Further orders can be expected around Fri, May 02, 2025 Regular price
$4.05 AUD
Regular price
Unit price
/
per
Per 2
|
||||||
M10 Fine (10x1.25mm)
|
M14 x1.5
|
14.000
mm |
12.80
mm |
![]() |
||
Material: Steel Countersink Diameter: 14.250 mm Locking Keys: 4 Tapped Hole Depth: 15.500 mm Removal Drill Size: 11.500 mm Removal Drill Depth: 4.750 mm Installation Tool: KLI-64755RS Non Standard | ||||||
Part Number: KLI-100MF-140-14 (2 Pcs) Inserts Thread Repair - M10 Fine -10x1.25mm- M14 x1.5 14 mm - Steel
3 units (6 pcs) Available Now | Further orders can be expected around Fri, May 02, 2025 Regular price
$4.05 AUD
Regular price
Unit price
/
per
Per 2
|
||||||
|
||||||
M10 (10x1.5mm)
|
M16 x1.5
|
16.000
mm |
14.75
mm |
16.250
mm |
4
|
![]() |
Material: Steel Tapped Hole Depth: 17.500 mm Removal Drill Size: 13.500 mm Removal Drill Depth: 4.750 mm Installation Tool: KLI-64767RS | ||||||
Part Number: KLI-100M-160-16 Inserts Thread Repair - M10 -10x1.5mm- M16 x1.5 16 mm - Steel
1 Available Now | Further orders can be expected around Fri, May 02, 2025 Regular price
$38.05 AUD
Regular price
Unit price
/
per
Each
|
||||||
M10 (10x1.5mm)
|
M16 x1.5
|
16.000
mm |
14.75
mm |
![]() |
||
Material: Steel Countersink Diameter: 16.250 mm Locking Keys: 4 Tapped Hole Depth: 17.500 mm Removal Drill Size: 13.500 mm Removal Drill Depth: 4.750 mm Installation Tool: KLI-64767RS | ||||||
Part Number: KLI-100M-160-16 Inserts Thread Repair - M10 -10x1.5mm- M16 x1.5 16 mm - Steel
1 Available Now | Further orders can be expected around Fri, May 02, 2025 Regular price
$38.05 AUD
Regular price
Unit price
/
per
Each
|
||||||
|
||||||
M12 (12x1.75mm)
|
M16 x1.5
|
16.00
mm |
14.75
mm |
16.25
mm |
4
|
![]() |
Material: Stainless Steel Tapped Hole Depth: 17.50 mm Removal Drill Size: 13.50 mm Removal Drill Depth: 4.75 mm Installation Tool: KLI-64769RS | ||||||
Part Number: KLI-120M-160-16-SS Inserts Thread Repair - M12 -12x1.75mm- M16 x1.5 16 mm - Stainless Steel
1 Available Now | Further orders can be expected around Sun, May 18, 2025 Regular price
$92.41 AUD
Regular price
Unit price
/
per
Each
|
||||||
M12 (12x1.75mm)
|
M16 x1.5
|
16.00
mm |
14.75
mm |
![]() |
||
Material: Stainless Steel Countersink Diameter: 16.25 mm Locking Keys: 4 Tapped Hole Depth: 17.50 mm Removal Drill Size: 13.50 mm Removal Drill Depth: 4.75 mm Installation Tool: KLI-64769RS | ||||||
Part Number: KLI-120M-160-16-SS Inserts Thread Repair - M12 -12x1.75mm- M16 x1.5 16 mm - Stainless Steel
1 Available Now | Further orders can be expected around Sun, May 18, 2025 Regular price
$92.41 AUD
Regular price
Unit price
/
per
Each
|
||||||
|
||||||
M12 (12x1.75mm)
|
M18 x1.5
|
18.000
mm |
16.75
mm |
18.250
mm |
4
|
![]() |
Material: Steel Tapped Hole Depth: 20.500 mm Removal Drill Size: 15.500 mm Removal Drill Depth: 4.750 mm Installation Tool: KLI-64769RS | ||||||
Part Number: KLI-120M-180-18 Inserts Thread Repair - M12 -12x1.75mm- M18 x1.5 18 mm - Steel
2 Available Now | Further orders can be expected around Fri, May 02, 2025 Regular price
$42.86 AUD
Regular price
Unit price
/
per
Each
|
||||||
M12 (12x1.75mm)
|
M18 x1.5
|
18.000
mm |
16.75
mm |
![]() |
||
Material: Steel Countersink Diameter: 18.250 mm Locking Keys: 4 Tapped Hole Depth: 20.500 mm Removal Drill Size: 15.500 mm Removal Drill Depth: 4.750 mm Installation Tool: KLI-64769RS | ||||||
Part Number: KLI-120M-180-18 Inserts Thread Repair - M12 -12x1.75mm- M18 x1.5 18 mm - Steel
2 Available Now | Further orders can be expected around Fri, May 02, 2025 Regular price
$42.86 AUD
Regular price
Unit price
/
per
Each
|
||||||
|