Collection: Thread Repair - Inserts - Keylocking

Thread Repair -> Inserts -> Keylocking

There are 130 products in the sub-categories of Thread Repair - Inserts - Keylocking. Scroll down or follow the link to Thread Repair - Inserts - Keylocking in the products table to see all these items combined into a handy table with filters.

Category Details

A selection of Keylocking Inserts Thread Repair. 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.

Miniature Bearings Australia - MBA Minibearings

Additional resources:


A more concise listing may be found in the Thread Repair - Inserts - Keylocking category on the Small Parts & Bearings online store.
Internal Thread External Thread Length Tap Drill Diameter Countersink Diameter Locking Keys Indicative
Image
Internal Thread
SOLID - Tap your own internal thread

External Thread
5/16-18 UNC (7.94mm)

Length
7.874
mm

(Equiv. 0.31 in.)
Tap Drill Diameter
6.90
mm
Countersink Diameter
8.128
mm
Locking Keys
4
Inserts Thread Repair - SOLID - Tap your own internal thread 5/16-18 UNC -7.94mm- 7.874 mm - Steel
Material: Steel    Tapped Hole Depth: 9.398 mm    Removal Drill Size: 5.556 mm    Removal Drill Depth: 3.175 mm    Installation Tool: KLI-64801RS   
Part Number: KLI-000-079-08
Inserts Thread Repair - SOLID - Tap your own internal thread 5/16-18 UNC - 7.94mm - 7.874 mm Keylocking - Steel Insert
Out of Stock | Backorder Now | Orders can be expected around Wed, Sep 17, 2025
Regular price $34.95 AUD
Regular price $41.95 AUD Sale price $34.95 AUD
Each
Quantity Required

Backorder: Out of Stock.
Internal Thread External Thread Length Tap Drill Diameter Indicative
Image
Internal Thread
SOLID - Tap your own internal thread

External Thread
5/16-18 UNC (7.94mm)

Length
7.874
mm

(Equiv. 0.31 in.)
Tap Drill Diameter
6.90
mm
Inserts Thread Repair - SOLID - Tap your own internal thread 5/16-18 UNC -7.94mm- 7.874 mm - Steel
Material: Steel    Countersink Diameter: 8.128 mm    Locking Keys: 4    Tapped Hole Depth: 9.398 mm    Removal Drill Size: 5.556 mm    Removal Drill Depth: 3.175 mm    Installation Tool: KLI-64801RS   
Part Number: KLI-000-079-08
Inserts Thread Repair - SOLID - Tap your own internal thread 5/16-18 UNC - 7.94mm - 7.874 mm Keylocking - Steel Insert
Out of Stock | Backorder Now | Orders can be expected around Wed, Sep 17, 2025
Regular price $34.95 AUD
Regular price $41.95 AUD Sale price $34.95 AUD
Each
Quantity Required

Backorder: Out of Stock.
Internal Thread
SOLID - Tap your own internal thread

External Thread
3/8-16 UNC (9.53mm)

Length
7.874
mm

(Equiv. 0.31 in.)
Tap Drill Diameter
6.90
mm
Countersink Diameter
8.128
mm
Locking Keys
4
Inserts Thread Repair - SOLID - Tap your own internal thread 3/8-16 UNC -9.53mm- 7.874 mm - Steel
Material: Steel    Tapped Hole Depth: 9.398 mm    Removal Drill Size: 5.556 mm    Removal Drill Depth: 3.175 mm    Installation Tool: KLI-64802RS   
Part Number: KLI-000-095-08
Inserts Thread Repair - SOLID - Tap your own internal thread 3/8-16 UNC - 9.53mm - 7.874 mm Keylocking - Steel Insert
Out of Stock | Backorder Now | Orders can be expected around Wed, Sep 17, 2025
Regular price $37.32 AUD
Regular price $44.78 AUD Sale price $37.32 AUD
Each
Quantity Required

Backorder: Out of Stock.
Internal Thread
SOLID - Tap your own internal thread

External Thread
3/8-16 UNC (9.53mm)

Length
7.874
mm

(Equiv. 0.31 in.)
Tap Drill Diameter
6.90
mm
Inserts Thread Repair - SOLID - Tap your own internal thread 3/8-16 UNC -9.53mm- 7.874 mm - Steel
Material: Steel    Countersink Diameter: 8.128 mm    Locking Keys: 4    Tapped Hole Depth: 9.398 mm    Removal Drill Size: 5.556 mm    Removal Drill Depth: 3.175 mm    Installation Tool: KLI-64802RS   
Part Number: KLI-000-095-08
Inserts Thread Repair - SOLID - Tap your own internal thread 3/8-16 UNC - 9.53mm - 7.874 mm Keylocking - Steel Insert
Out of Stock | Backorder Now | Orders can be expected around Wed, Sep 17, 2025
Regular price $37.32 AUD
Regular price $44.78 AUD Sale price $37.32 AUD
Each
Quantity Required

Backorder: Out of Stock.
Internal Thread
SOLID - Tap your own internal thread

External Thread
1/2-13 UNC (12.7mm)

Length
10.922
mm

(Equiv. 0.43 in.)
Tap Drill Diameter
11.51
mm
Countersink Diameter
12.954
mm
Locking Keys
4
Inserts Thread Repair - SOLID - Tap your own internal thread 1/2-13 UNC -12.7mm- 10.922 mm - Steel
Material: Steel    Tapped Hole Depth: 12.700 mm    Removal Drill Size: 10.319 mm    Removal Drill Depth: 4.763 mm    Installation Tool: KLI-64804RS   
Part Number: KLI-000-127-11
Inserts Thread Repair - SOLID - Tap your own internal thread 1/2-13 UNC - 12.7mm - 10.922 mm Keylocking - Steel Insert
Out of Stock | Backorder Now | Orders can be expected around Wed, Sep 17, 2025
Regular price $49.23 AUD
Regular price $59.07 AUD Sale price $49.23 AUD
Each
Quantity Required

Backorder: Out of Stock.
Internal Thread
SOLID - Tap your own internal thread

External Thread
1/2-13 UNC (12.7mm)

Length
10.922
mm

(Equiv. 0.43 in.)
Tap Drill Diameter
11.51
mm
Inserts Thread Repair - SOLID - Tap your own internal thread 1/2-13 UNC -12.7mm- 10.922 mm - Steel
Material: Steel    Countersink Diameter: 12.954 mm    Locking Keys: 4    Tapped Hole Depth: 12.700 mm    Removal Drill Size: 10.319 mm    Removal Drill Depth: 4.763 mm    Installation Tool: KLI-64804RS   
Part Number: KLI-000-127-11
Inserts Thread Repair - SOLID - Tap your own internal thread 1/2-13 UNC - 12.7mm - 10.922 mm Keylocking - Steel Insert
Out of Stock | Backorder Now | Orders can be expected around Wed, Sep 17, 2025
Regular price $49.23 AUD
Regular price $59.07 AUD Sale price $49.23 AUD
Each
Quantity Required

Backorder: Out of Stock.
Internal Thread
SOLID - Tap your own internal thread

External Thread
5/8-11 UNC (15.88mm)

Length
15.748
mm

(Equiv. 0.62 in.)
Tap Drill Diameter
14.68
mm
Countersink Diameter
16.002
mm
Locking Keys
4
Inserts Thread Repair - SOLID - Tap your own internal thread 5/8-11 UNC -15.88mm- 15.748 mm - Steel
Material: Steel    Tapped Hole Depth: 17.272 mm    Removal Drill Size: 13.494 mm    Removal Drill Depth: 4.763 mm    Installation Tool: KLI-64806RS   
Part Number: KLI-000-159-16
Inserts Thread Repair - SOLID - Tap your own internal thread 5/8-11 UNC - 15.88mm - 15.748 mm Keylocking - Steel Insert
Out of Stock | Backorder Now | Orders can be expected around Wed, Sep 17, 2025
Regular price $61.95 AUD
Regular price $74.35 AUD Sale price $61.95 AUD
Each
Quantity Required

Backorder: Out of Stock.
Internal Thread
SOLID - Tap your own internal thread

External Thread
5/8-11 UNC (15.88mm)

Length
15.748
mm

(Equiv. 0.62 in.)
Tap Drill Diameter
14.68
mm
Inserts Thread Repair - SOLID - Tap your own internal thread 5/8-11 UNC -15.88mm- 15.748 mm - Steel
Material: Steel    Countersink Diameter: 16.002 mm    Locking Keys: 4    Tapped Hole Depth: 17.272 mm    Removal Drill Size: 13.494 mm    Removal Drill Depth: 4.763 mm    Installation Tool: KLI-64806RS   
Part Number: KLI-000-159-16
Inserts Thread Repair - SOLID - Tap your own internal thread 5/8-11 UNC - 15.88mm - 15.748 mm Keylocking - Steel Insert
Out of Stock | Backorder Now | Orders can be expected around Wed, Sep 17, 2025
Regular price $61.95 AUD
Regular price $74.35 AUD Sale price $61.95 AUD
Each
Quantity Required

Backorder: Out of Stock.
Internal Thread
SOLID - Tap your own internal thread

External Thread
M18 x1.5

Length
18.000
mm

(Equiv. 0.709 in.)
Tap Drill Diameter
16.75
mm
Countersink Diameter
18.250
mm
Locking Keys
4
Inserts Thread Repair - SOLID - Tap your own internal thread M18 x1.5 18 mm - Steel
Material: Steel    Tapped Hole Depth: 20.500 mm    Removal Drill Size: 15.500 mm    Removal Drill Depth: 4.750 mm    Installation Tool: KLI-64826RS   
Part Number: KLI-000-180-18
Inserts Thread Repair - SOLID - Tap your own internal thread M18 x1.5 18 mm Keylocking - Steel Insert
Out of Stock | Backorder Now | Orders can be expected around Wed, Sep 17, 2025
Regular price $59.23 AUD
Regular price $71.07 AUD Sale price $59.23 AUD
Each
Quantity Required

Backorder: Out of Stock.
Internal Thread
SOLID - Tap your own internal thread

External Thread
M18 x1.5

Length
18.000
mm

(Equiv. 0.709 in.)
Tap Drill Diameter
16.75
mm
Inserts Thread Repair - SOLID - Tap your own internal thread M18 x1.5 18 mm - Steel
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-64826RS   
Part Number: KLI-000-180-18
Inserts Thread Repair - SOLID - Tap your own internal thread M18 x1.5 18 mm Keylocking - Steel Insert
Out of Stock | Backorder Now | Orders can be expected around Wed, Sep 17, 2025
Regular price $59.23 AUD
Regular price $71.07 AUD Sale price $59.23 AUD
Each
Quantity Required

Backorder: Out of Stock.
Internal Thread
SOLID - Tap your own internal thread

External Thread
3/4-16 UNC

Length
15.748
mm

(Equiv. 0.62 in.)
Tap Drill Diameter
17.86
mm
Countersink Diameter
19.304
mm
Locking Keys
4
Inserts Thread Repair - SOLID - Tap your own internal thread 3/4-16 UNC 15.748 mm - Steel
Material: Steel    Tapped Hole Depth: 17.272 mm    Removal Drill Size: 16.669 mm    Removal Drill Depth: 4.763 mm    Installation Tool: KLI-64807RS   
Part Number: KLI-000-191-16
Inserts Thread Repair - SOLID - Tap your own internal thread 3/4-16 UNC 15.748 mm Keylocking - Steel Insert
Out of Stock | Backorder Now | Orders can be expected around Wed, Sep 17, 2025
Regular price $73.05 AUD
Regular price $87.65 AUD Sale price $73.05 AUD
Each
Quantity Required

Backorder: Out of Stock.
Internal Thread
SOLID - Tap your own internal thread

External Thread
3/4-16 UNC

Length
15.748
mm

(Equiv. 0.62 in.)
Tap Drill Diameter
17.86
mm
Inserts Thread Repair - SOLID - Tap your own internal thread 3/4-16 UNC 15.748 mm - Steel
Material: Steel    Countersink Diameter: 19.304 mm    Locking Keys: 4    Tapped Hole Depth: 17.272 mm    Removal Drill Size: 16.669 mm    Removal Drill Depth: 4.763 mm    Installation Tool: KLI-64807RS   
Part Number: KLI-000-191-16
Inserts Thread Repair - SOLID - Tap your own internal thread 3/4-16 UNC 15.748 mm Keylocking - Steel Insert
Out of Stock | Backorder Now | Orders can be expected around Wed, Sep 17, 2025
Regular price $73.05 AUD
Regular price $87.65 AUD Sale price $73.05 AUD
Each
Quantity Required

Backorder: Out of Stock.
Internal Thread
SOLID - Tap your own internal thread

External Thread
7/8-14 UNC

Length
22.098
mm

(Equiv. 0.87 in.)
Tap Drill Diameter
21.00
mm
Countersink Diameter
22.352
mm
Locking Keys
4
Inserts Thread Repair - SOLID - Tap your own internal thread 7/8-14 UNC 22.098 mm - Steel
Material: Steel    Tapped Hole Depth: 25.400 mm    Removal Drill Size: 21.431 mm    Removal Drill Depth: 4.763 mm    Installation Tool: KLI-64808RS   
Part Number: KLI-000-222-22
Inserts Thread Repair - SOLID - Tap your own internal thread 7/8-14 UNC 22.098 mm Keylocking - Steel Insert
Out of Stock | Backorder Now | Orders can be expected around Wed, Sep 17, 2025
Regular price $89.77 AUD
Regular price $107.73 AUD Sale price $89.77 AUD
Each
Quantity Required

Backorder: Out of Stock.
Internal Thread
SOLID - Tap your own internal thread

External Thread
7/8-14 UNC

Length
22.098
mm

(Equiv. 0.87 in.)
Tap Drill Diameter
21.00
mm
Inserts Thread Repair - SOLID - Tap your own internal thread 7/8-14 UNC 22.098 mm - Steel
Material: Steel    Countersink Diameter: 22.352 mm    Locking Keys: 4    Tapped Hole Depth: 25.400 mm    Removal Drill Size: 21.431 mm    Removal Drill Depth: 4.763 mm    Installation Tool: KLI-64808RS   
Part Number: KLI-000-222-22
Inserts Thread Repair - SOLID - Tap your own internal thread 7/8-14 UNC 22.098 mm Keylocking - Steel Insert
Out of Stock | Backorder Now | Orders can be expected around Wed, Sep 17, 2025
Regular price $89.77 AUD
Regular price $107.73 AUD Sale price $89.77 AUD
Each
Quantity Required

Backorder: Out of Stock.
Internal Thread
SOLID - Tap your own internal thread

External Thread
1-12 UNC

Length
22.098
mm

(Equiv. 0.87 in.)
Tap Drill Diameter
21.00
mm
Countersink Diameter
22.352
mm
Locking Keys
4
Inserts Thread Repair - SOLID - Tap your own internal thread 1-12 UNC 22.098 mm - Steel
Material: Steel    Tapped Hole Depth: 25.400 mm    Removal Drill Size: 21.431 mm    Removal Drill Depth: 4.763 mm    Installation Tool: KLI-64809RS   
Part Number: KLI-000-254-22 (25 Pcs)
Inserts Thread Repair - SOLID - Tap your own internal thread 1-12 UNC 22.098 mm Keylocking - Steel Insert
Out of Stock | Backorder Now | Orders can be expected around Wed, Sep 17, 2025
Regular price $3,502.23 AUD
Regular price Sale price $3,502.23 AUD
Per 25
Quantity Required

Backorder: Out of Stock.
Internal Thread
SOLID - Tap your own internal thread

External Thread
1-12 UNC

Length
22.098
mm

(Equiv. 0.87 in.)
Tap Drill Diameter
21.00
mm
Inserts Thread Repair - SOLID - Tap your own internal thread 1-12 UNC 22.098 mm - Steel
Material: Steel    Countersink Diameter: 22.352 mm    Locking Keys: 4    Tapped Hole Depth: 25.400 mm    Removal Drill Size: 21.431 mm    Removal Drill Depth: 4.763 mm    Installation Tool: KLI-64809RS   
Part Number: KLI-000-254-22 (25 Pcs)
Inserts Thread Repair - SOLID - Tap your own internal thread 1-12 UNC 22.098 mm Keylocking - Steel Insert
Out of Stock | Backorder Now | Orders can be expected around Wed, Sep 17, 2025
Regular price $3,502.23 AUD
Regular price Sale price $3,502.23 AUD
Per 25
Quantity Required

Backorder: Out of Stock.
Internal Thread
SOLID - Tap your own internal thread

External Thread
1.1/8-12 UNF

Length
28.448
mm

(Equiv. 1.12 in.)
Tap Drill Diameter
23.81
mm
Countersink Diameter
25.908
mm
Locking Keys
4
Inserts Thread Repair - SOLID - Tap your own internal thread 1.1/8-12 UNF 28.448 mm - Steel
Material: Steel    Tapped Hole Depth: 33.274 mm    Removal Drill Size: 24.606 mm    Removal Drill Depth: 4.763 mm    Installation Tool: KLI-64810RS   
Part Number: KLI-000-284-28
Inserts Thread Repair - SOLID - Tap your own internal thread 1.1/8-12 UNF 28.448 mm Keylocking - Steel Insert
Out of Stock | Backorder Now | Orders can be expected around Wed, Sep 17, 2025
Regular price $160.23 AUD
Regular price $192.27 AUD Sale price $160.23 AUD
Each
Quantity Required

Backorder: Out of Stock.
Internal Thread
SOLID - Tap your own internal thread

External Thread
1.1/8-12 UNF

Length
28.448
mm

(Equiv. 1.12 in.)
Tap Drill Diameter
23.81
mm
Inserts Thread Repair - SOLID - Tap your own internal thread 1.1/8-12 UNF 28.448 mm - Steel
Material: Steel    Countersink Diameter: 25.908 mm    Locking Keys: 4    Tapped Hole Depth: 33.274 mm    Removal Drill Size: 24.606 mm    Removal Drill Depth: 4.763 mm    Installation Tool: KLI-64810RS   
Part Number: KLI-000-284-28
Inserts Thread Repair - SOLID - Tap your own internal thread 1.1/8-12 UNF 28.448 mm Keylocking - Steel Insert
Out of Stock | Backorder Now | Orders can be expected around Wed, Sep 17, 2025
Regular price $160.23 AUD
Regular price $192.27 AUD Sale price $160.23 AUD
Each
Quantity Required

Backorder: Out of Stock.
Internal Thread
6-32 UNC (3.5mm)

External Thread
5/16-18 UNC (7.94mm)

Length
7.874
mm

(Equiv. 0.31 in.)
Tap Drill Diameter
6.90
mm
Countersink Diameter
8.128
mm
Locking Keys
4
Inserts Thread Repair - 6-32 UNC -3.5mm- 5/16-18 UNC -7.94mm- 7.874 mm - Steel
Material: Steel    Tapped Hole Depth: 9.398 mm    Removal Drill Size: 5.556 mm    Removal Drill Depth: 3.175 mm    Installation Tool: KLI-64731RS   
Part Number: KLI-035C-079-08
Inserts Thread Repair - 6-32 UNC - 3.5mm - 5/16-18 UNC - 7.94mm - 7.874 mm Keylocking - Steel Insert
Out of Stock | Backorder Now | Orders can be expected around Wed, Sep 17, 2025
Regular price $34.68 AUD
Regular price $41.62 AUD Sale price $34.68 AUD
Each
Quantity Required

Backorder: Out of Stock.
Internal Thread
6-32 UNC (3.5mm)

External Thread
5/16-18 UNC (7.94mm)

Length
7.874
mm

(Equiv. 0.31 in.)
Tap Drill Diameter
6.90
mm
Inserts Thread Repair - 6-32 UNC -3.5mm- 5/16-18 UNC -7.94mm- 7.874 mm - Steel
Material: Steel    Countersink Diameter: 8.128 mm    Locking Keys: 4    Tapped Hole Depth: 9.398 mm    Removal Drill Size: 5.556 mm    Removal Drill Depth: 3.175 mm    Installation Tool: KLI-64731RS   
Part Number: KLI-035C-079-08
Inserts Thread Repair - 6-32 UNC - 3.5mm - 5/16-18 UNC - 7.94mm - 7.874 mm Keylocking - Steel Insert
Out of Stock | Backorder Now | Orders can be expected around Wed, Sep 17, 2025
Regular price $34.68 AUD
Regular price $41.62 AUD Sale price $34.68 AUD
Each
Quantity Required

Backorder: Out of Stock.
Internal Thread
M4 (4x0.7mm)

External Thread
M8 x 1.25

Length
8.000
mm

(Equiv. 0.315 in.)
Tap Drill Diameter
6.90
mm
Countersink Diameter
8.250
mm
Locking Keys
4
Inserts Thread Repair - M4 -4x0.7mm- M8 x 1.25 8 mm - Steel
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 Keylocking - Steel Insert
2 Available Now | Further orders can be expected around Wed, Sep 17, 2025
Regular price $23.77 AUD
Regular price $43.61 AUD Sale price $23.77 AUD
Each
Quantity Required

2 Available Now. Backorder if more than 2.
Internal Thread
M4 (4x0.7mm)

External Thread
M8 x 1.25

Length
8.000
mm

(Equiv. 0.315 in.)
Tap Drill Diameter
6.90
mm
Inserts Thread Repair - M4 -4x0.7mm- M8 x 1.25 8 mm - Steel
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 Keylocking - Steel Insert
2 Available Now | Further orders can be expected around Wed, Sep 17, 2025
Regular price $23.77 AUD
Regular price $43.61 AUD Sale price $23.77 AUD
Each
Quantity Required

2 Available Now. Backorder if more than 2.
Internal Thread
M4 (4x0.7mm)

External Thread
M8 x 1.25

Length
8.00
mm

(Equiv. 0.315 in.)
Tap Drill Diameter
6.90
mm
Countersink Diameter
8.25
mm
Locking Keys
2
Inserts Thread Repair - M4 -4x0.7mm- M8 x 1.25 8 mm - Stainless Steel
Material: Stainless Steel    Tapped Hole Depth: 9.50 mm    Removal Drill Size: 5.50 mm    Removal Drill Depth: 4.75 mm    Installation Tool: KLI-64763RS   
Part Number: KLI-040M-080-08-SS
Inserts Thread Repair - M4 - 4x0.7mm - M8 x 1.25 8 mm Keylocking - Stainless Steel Insert
Out of Stock | Backorder Now | Orders can be expected around Wed, Sep 17, 2025
Regular price $29.77 AUD
Regular price $35.73 AUD Sale price $29.77 AUD
Each
Quantity Required

Backorder: Out of Stock.
Internal Thread
M4 (4x0.7mm)

External Thread
M8 x 1.25

Length
8.00
mm

(Equiv. 0.315 in.)
Tap Drill Diameter
6.90
mm
Inserts Thread Repair - M4 -4x0.7mm- M8 x 1.25 8 mm - Stainless Steel
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: 4.75 mm    Installation Tool: KLI-64763RS   
Part Number: KLI-040M-080-08-SS
Inserts Thread Repair - M4 - 4x0.7mm - M8 x 1.25 8 mm Keylocking - Stainless Steel Insert
Out of Stock | Backorder Now | Orders can be expected around Wed, Sep 17, 2025
Regular price $29.77 AUD
Regular price $35.73 AUD Sale price $29.77 AUD
Each
Quantity Required

Backorder: Out of Stock.
Internal Thread
8-32 UNC (4.17mm)

External Thread
5/16-18 UNC (7.94mm)

Length
7.874
mm

(Equiv. 0.31 in.)
Tap Drill Diameter
6.90
mm
Countersink Diameter
8.128
mm
Locking Keys
4
Inserts Thread Repair - 8-32 UNC -4.17mm- 5/16-18 UNC -7.94mm- 7.874 mm - Steel
Material: Steel    Tapped Hole Depth: 9.398 mm    Removal Drill Size: 5.556 mm    Removal Drill Depth: 3.175 mm    Installation Tool: KLI-64700RS   
Part Number: KLI-042C-079-08
Inserts Thread Repair - 8-32 UNC - 4.17mm - 5/16-18 UNC - 7.94mm - 7.874 mm Keylocking - Steel Insert
Out of Stock | Backorder Now | Orders can be expected around Wed, Sep 17, 2025
Regular price $4.68 AUD
Regular price $5.62 AUD Sale price $4.68 AUD
Each
Quantity Required

Backorder: Out of Stock.
Internal Thread
8-32 UNC (4.17mm)

External Thread
5/16-18 UNC (7.94mm)

Length
7.874
mm

(Equiv. 0.31 in.)
Tap Drill Diameter
6.90
mm
Inserts Thread Repair - 8-32 UNC -4.17mm- 5/16-18 UNC -7.94mm- 7.874 mm - Steel
Material: Steel    Countersink Diameter: 8.128 mm    Locking Keys: 4    Tapped Hole Depth: 9.398 mm    Removal Drill Size: 5.556 mm    Removal Drill Depth: 3.175 mm    Installation Tool: KLI-64700RS   
Part Number: KLI-042C-079-08
Inserts Thread Repair - 8-32 UNC - 4.17mm - 5/16-18 UNC - 7.94mm - 7.874 mm Keylocking - Steel Insert
Out of Stock | Backorder Now | Orders can be expected around Wed, Sep 17, 2025
Regular price $4.68 AUD
Regular price $5.62 AUD Sale price $4.68 AUD
Each
Quantity Required

Backorder: Out of Stock.
Internal Thread
8-32 UNC (4.17mm)

External Thread
5/16-18 UNC (7.94mm)

Length
7.874
mm

(Equiv. 0.31 in.)
Tap Drill Diameter
6.90
mm
Countersink Diameter
8.128
mm
Locking Keys
4
Inserts Thread Repair - 8-32 UNC -4.17mm- 5/16-18 UNC -7.94mm- 7.874 mm - Stainless Steel
Material: Stainless Steel    Tapped Hole Depth: 9.398 mm    Removal Drill Size: 5.556 mm    Removal Drill Depth: 3.175 mm    Installation Tool: KLI-64700RS   
Part Number: KLI-042C-079-08-SS
Inserts Thread Repair - 8-32 UNC - 4.17mm - 5/16-18 UNC - 7.94mm - 7.874 mm Keylocking - Stainless Steel Insert
Out of Stock | Backorder Now | Orders can be expected around Wed, Sep 17, 2025
Regular price $5.50 AUD
Regular price $6.60 AUD Sale price $5.50 AUD
Each
Quantity Required

Backorder: Out of Stock.
Internal Thread
8-32 UNC (4.17mm)

External Thread
5/16-18 UNC (7.94mm)

Length
7.874
mm

(Equiv. 0.31 in.)
Tap Drill Diameter
6.90
mm
Inserts Thread Repair - 8-32 UNC -4.17mm- 5/16-18 UNC -7.94mm- 7.874 mm - Stainless Steel
Material: Stainless Steel    Countersink Diameter: 8.128 mm    Locking Keys: 4    Tapped Hole Depth: 9.398 mm    Removal Drill Size: 5.556 mm    Removal Drill Depth: 3.175 mm    Installation Tool: KLI-64700RS   
Part Number: KLI-042C-079-08-SS
Inserts Thread Repair - 8-32 UNC - 4.17mm - 5/16-18 UNC - 7.94mm - 7.874 mm Keylocking - Stainless Steel Insert
Out of Stock | Backorder Now | Orders can be expected around Wed, Sep 17, 2025
Regular price $5.50 AUD
Regular price $6.60 AUD Sale price $5.50 AUD
Each
Quantity Required

Backorder: Out of Stock.
Internal Thread
10-24 UNC (4.76mm)

External Thread
5/16-18 UNC (7.94mm)

Length
7.874
mm

(Equiv. 0.31 in.)
Tap Drill Diameter
6.90
mm
Countersink Diameter
8.128
mm
Locking Keys
4
Inserts Thread Repair - 10-24 UNC -4.76mm- 5/16-18 UNC -7.94mm- 7.874 mm - Steel
Material: Steel    Tapped Hole Depth: 9.398 mm    Removal Drill Size: 5.556 mm    Removal Drill Depth: 3.175 mm    Installation Tool: KLI-64721RS   
Part Number: KLI-048C-079-08
Inserts Thread Repair - 10-24 UNC - 4.76mm - 5/16-18 UNC - 7.94mm - 7.874 mm Keylocking - Steel Insert
Out of Stock | Backorder Now | Orders can be expected around Wed, Sep 17, 2025
Regular price $6.05 AUD
Regular price $7.25 AUD Sale price $6.05 AUD
Each
Quantity Required

Backorder: Out of Stock.
Internal Thread
10-24 UNC (4.76mm)

External Thread
5/16-18 UNC (7.94mm)

Length
7.874
mm

(Equiv. 0.31 in.)
Tap Drill Diameter
6.90
mm
Inserts Thread Repair - 10-24 UNC -4.76mm- 5/16-18 UNC -7.94mm- 7.874 mm - Steel
Material: Steel    Countersink Diameter: 8.128 mm    Locking Keys: 4    Tapped Hole Depth: 9.398 mm    Removal Drill Size: 5.556 mm    Removal Drill Depth: 3.175 mm    Installation Tool: KLI-64721RS   
Part Number: KLI-048C-079-08
Inserts Thread Repair - 10-24 UNC - 4.76mm - 5/16-18 UNC - 7.94mm - 7.874 mm Keylocking - Steel Insert
Out of Stock | Backorder Now | Orders can be expected around Wed, Sep 17, 2025
Regular price $6.05 AUD
Regular price $7.25 AUD Sale price $6.05 AUD
Each
Quantity Required

Backorder: Out of Stock.
Internal Thread
10-24 UNC (4.76mm)

External Thread
5/16-18 UNC (7.94mm)

Length
7.874
mm

(Equiv. 0.31 in.)
Tap Drill Diameter
6.90
mm
Countersink Diameter
8.128
mm
Locking Keys
4
Inserts Thread Repair - 10-24 UNC -4.76mm- 5/16-18 UNC -7.94mm- 7.874 mm - Stainless Steel
Material: Stainless Steel    Tapped Hole Depth: 9.398 mm    Removal Drill Size: 5.556 mm    Removal Drill Depth: 3.175 mm    Installation Tool: KLI-64721RS   
Part Number: KLI-048C-079-08-SS
Inserts Thread Repair - 10-24 UNC - 4.76mm - 5/16-18 UNC - 7.94mm - 7.874 mm Keylocking - Stainless Steel Insert
Out of Stock | Backorder Now | Orders can be expected around Wed, Sep 17, 2025
Regular price $13.68 AUD
Regular price $16.42 AUD Sale price $13.68 AUD
Each
Quantity Required

Backorder: Out of Stock.
Internal Thread
10-24 UNC (4.76mm)

External Thread
5/16-18 UNC (7.94mm)

Length
7.874
mm

(Equiv. 0.31 in.)
Tap Drill Diameter
6.90
mm
Inserts Thread Repair - 10-24 UNC -4.76mm- 5/16-18 UNC -7.94mm- 7.874 mm - Stainless Steel
Material: Stainless Steel    Countersink Diameter: 8.128 mm    Locking Keys: 4    Tapped Hole Depth: 9.398 mm    Removal Drill Size: 5.556 mm    Removal Drill Depth: 3.175 mm    Installation Tool: KLI-64721RS   
Part Number: KLI-048C-079-08-SS
Inserts Thread Repair - 10-24 UNC - 4.76mm - 5/16-18 UNC - 7.94mm - 7.874 mm Keylocking - Stainless Steel Insert
Out of Stock | Backorder Now | Orders can be expected around Wed, Sep 17, 2025
Regular price $13.68 AUD
Regular price $16.42 AUD Sale price $13.68 AUD
Each
Quantity Required

Backorder: Out of Stock.
Internal Thread
10-24 UNC (4.76mm)

External Thread
3/8-16 UNC (9.53mm)

Length
7.874
mm

(Equiv. 0.31 in.)
Tap Drill Diameter
8.43
mm
Countersink Diameter
9.652
mm
Locking Keys
4
Inserts Thread Repair - 10-24 UNC -4.76mm- 3/8-16 UNC -9.53mm- 7.874 mm - Stainless Steel
Material: Stainless Steel    Tapped Hole Depth: 9.398 mm    Removal Drill Size: 7.144 mm    Removal Drill Depth: 3.175 mm    Installation Tool: KLI-64701RS   
Part Number: KLI-048C-095-08-SS
Inserts Thread Repair - 10-24 UNC - 4.76mm - 3/8-16 UNC - 9.53mm - 7.874 mm Keylocking - Stainless Steel Insert
Out of Stock | Backorder Now | Orders can be expected around Wed, Sep 17, 2025
Regular price $11.05 AUD
Regular price $13.25 AUD Sale price $11.05 AUD
Each
Quantity Required

Backorder: Out of Stock.
Internal Thread
10-24 UNC (4.76mm)

External Thread
3/8-16 UNC (9.53mm)

Length
7.874
mm

(Equiv. 0.31 in.)
Tap Drill Diameter
8.43
mm
Inserts Thread Repair - 10-24 UNC -4.76mm- 3/8-16 UNC -9.53mm- 7.874 mm - Stainless Steel
Material: Stainless Steel    Countersink Diameter: 9.652 mm    Locking Keys: 4    Tapped Hole Depth: 9.398 mm    Removal Drill Size: 7.144 mm    Removal Drill Depth: 3.175 mm    Installation Tool: KLI-64701RS   
Part Number: KLI-048C-095-08-SS
Inserts Thread Repair - 10-24 UNC - 4.76mm - 3/8-16 UNC - 9.53mm - 7.874 mm Keylocking - Stainless Steel Insert
Out of Stock | Backorder Now | Orders can be expected around Wed, Sep 17, 2025
Regular price $11.05 AUD
Regular price $13.25 AUD Sale price $11.05 AUD
Each
Quantity Required

Backorder: Out of Stock.
Internal Thread
10-32 UNF (4.76mm)

External Thread
5/16-18 UNC (7.94mm)

Length
7.874
mm

(Equiv. 0.31 in.)
Tap Drill Diameter
6.90
mm
Countersink Diameter
8.128
mm
Locking Keys
4
Inserts Thread Repair - 10-32 UNF -4.76mm- 5/16-18 UNC -7.94mm- 7.874 mm - Steel
Material: Steel    Tapped Hole Depth: 9.398 mm    Removal Drill Size: 5.556 mm    Removal Drill Depth: 3.175 mm    Installation Tool: KLI-64721RS   
Part Number: KLI-048F-079-08
Inserts Thread Repair - 10-32 UNF - 4.76mm - 5/16-18 UNC - 7.94mm - 7.874 mm Keylocking - Steel Insert
Out of Stock | Backorder Now | Orders can be expected around Wed, Sep 17, 2025
Regular price $8.68 AUD
Regular price Sale price $8.68 AUD
Each
Quantity Required

Backorder: Out of Stock.
Internal Thread
10-32 UNF (4.76mm)

External Thread
5/16-18 UNC (7.94mm)

Length
7.874
mm

(Equiv. 0.31 in.)
Tap Drill Diameter
6.90
mm
Inserts Thread Repair - 10-32 UNF -4.76mm- 5/16-18 UNC -7.94mm- 7.874 mm - Steel
Material: Steel    Countersink Diameter: 8.128 mm    Locking Keys: 4    Tapped Hole Depth: 9.398 mm    Removal Drill Size: 5.556 mm    Removal Drill Depth: 3.175 mm    Installation Tool: KLI-64721RS   
Part Number: KLI-048F-079-08
Inserts Thread Repair - 10-32 UNF - 4.76mm - 5/16-18 UNC - 7.94mm - 7.874 mm Keylocking - Steel Insert
Out of Stock | Backorder Now | Orders can be expected around Wed, Sep 17, 2025
Regular price $8.68 AUD
Regular price Sale price $8.68 AUD
Each
Quantity Required

Backorder: Out of Stock.
Internal Thread
10-32 UNF (4.76mm)

External Thread
5/16-18 UNC (7.94mm)

Length
7.874
mm

(Equiv. 0.31 in.)
Tap Drill Diameter
6.90
mm
Countersink Diameter
8.128
mm
Locking Keys
4
Inserts Thread Repair - 10-32 UNF -4.76mm- 5/16-18 UNC -7.94mm- 7.874 mm - Stainless Steel
Material: Stainless Steel    Tapped Hole Depth: 9.398 mm    Removal Drill Size: 5.556 mm    Removal Drill Depth: 3.175 mm    Installation Tool: KLI-64721RS   
Part Number: KLI-048F-079-08-SS
Inserts Thread Repair - 10-32 UNF - 4.76mm - 5/16-18 UNC - 7.94mm - 7.874 mm Keylocking - Stainless Steel Insert
Out of Stock | Backorder Now | Orders can be expected around Wed, Sep 17, 2025
Regular price $13.68 AUD
Regular price $16.42 AUD Sale price $13.68 AUD
Each
Quantity Required

Backorder: Out of Stock.
Internal Thread
10-32 UNF (4.76mm)

External Thread
5/16-18 UNC (7.94mm)

Length
7.874
mm

(Equiv. 0.31 in.)
Tap Drill Diameter
6.90
mm
Inserts Thread Repair - 10-32 UNF -4.76mm- 5/16-18 UNC -7.94mm- 7.874 mm - Stainless Steel
Material: Stainless Steel    Countersink Diameter: 8.128 mm    Locking Keys: 4    Tapped Hole Depth: 9.398 mm    Removal Drill Size: 5.556 mm    Removal Drill Depth: 3.175 mm    Installation Tool: KLI-64721RS   
Part Number: KLI-048F-079-08-SS
Inserts Thread Repair - 10-32 UNF - 4.76mm - 5/16-18 UNC - 7.94mm - 7.874 mm Keylocking - Stainless Steel Insert
Out of Stock | Backorder Now | Orders can be expected around Wed, Sep 17, 2025
Regular price $13.68 AUD
Regular price $16.42 AUD Sale price $13.68 AUD
Each
Quantity Required

Backorder: Out of Stock.
Internal Thread
10-32 UNF (4.76mm)

External Thread
3/8-16 UNC (9.53mm)

Length
7.874
mm

(Equiv. 0.31 in.)
Tap Drill Diameter
8.43
mm
Countersink Diameter
9.652
mm
Locking Keys
4
Inserts Thread Repair - 10-32 UNF -4.76mm- 3/8-16 UNC -9.53mm- 7.874 mm - Steel
Material: Steel    Tapped Hole Depth: 9.398 mm    Removal Drill Size: 7.144 mm    Removal Drill Depth: 3.175 mm    Installation Tool: KLI-64701RS   
Part Number: KLI-048F-095-08
Inserts Thread Repair - 10-32 UNF - 4.76mm - 3/8-16 UNC - 9.53mm - 7.874 mm Keylocking - Steel Insert
Out of Stock | Backorder Now | Orders can be expected around Wed, Sep 17, 2025
Regular price $6.32 AUD
Regular price $7.58 AUD Sale price $6.32 AUD
Each
Quantity Required

Backorder: Out of Stock.
Internal Thread
10-32 UNF (4.76mm)

External Thread
3/8-16 UNC (9.53mm)

Length
7.874
mm

(Equiv. 0.31 in.)
Tap Drill Diameter
8.43
mm
Inserts Thread Repair - 10-32 UNF -4.76mm- 3/8-16 UNC -9.53mm- 7.874 mm - Steel
Material: Steel    Countersink Diameter: 9.652 mm    Locking Keys: 4    Tapped Hole Depth: 9.398 mm    Removal Drill Size: 7.144 mm    Removal Drill Depth: 3.175 mm    Installation Tool: KLI-64701RS   
Part Number: KLI-048F-095-08
Inserts Thread Repair - 10-32 UNF - 4.76mm - 3/8-16 UNC - 9.53mm - 7.874 mm Keylocking - Steel Insert
Out of Stock | Backorder Now | Orders can be expected around Wed, Sep 17, 2025
Regular price $6.32 AUD
Regular price $7.58 AUD Sale price $6.32 AUD
Each
Quantity Required

Backorder: Out of Stock.
Internal Thread
10-32 UNF (4.76mm)

External Thread
3/8-16 UNC (9.53mm)

Length
7.874
mm

(Equiv. 0.31 in.)
Tap Drill Diameter
8.43
mm
Countersink Diameter
9.652
mm
Locking Keys
4
Inserts Thread Repair - 10-32 UNF -4.76mm- 3/8-16 UNC -9.53mm- 7.874 mm - Stainless Steel
Material: Stainless Steel    Tapped Hole Depth: 9.398 mm    Removal Drill Size: 7.144 mm    Removal Drill Depth: 3.175 mm    Installation Tool: KLI-64701RS   
Part Number: KLI-048F-095-08-SS
Inserts Thread Repair - 10-32 UNF - 4.76mm - 3/8-16 UNC - 9.53mm - 7.874 mm Keylocking - Stainless Steel Insert
Out of Stock | Backorder Now | Orders can be expected around Wed, Sep 17, 2025
Regular price $9.41 AUD
Regular price $11.29 AUD Sale price $9.41 AUD
Each
Quantity Required

Backorder: Out of Stock.
Internal Thread
10-32 UNF (4.76mm)

External Thread
3/8-16 UNC (9.53mm)

Length
7.874
mm

(Equiv. 0.31 in.)
Tap Drill Diameter
8.43
mm
Inserts Thread Repair - 10-32 UNF -4.76mm- 3/8-16 UNC -9.53mm- 7.874 mm - Stainless Steel
Material: Stainless Steel    Countersink Diameter: 9.652 mm    Locking Keys: 4    Tapped Hole Depth: 9.398 mm    Removal Drill Size: 7.144 mm    Removal Drill Depth: 3.175 mm    Installation Tool: KLI-64701RS   
Part Number: KLI-048F-095-08-SS
Inserts Thread Repair - 10-32 UNF - 4.76mm - 3/8-16 UNC - 9.53mm - 7.874 mm Keylocking - Stainless Steel Insert
Out of Stock | Backorder Now | Orders can be expected around Wed, Sep 17, 2025
Regular price $9.41 AUD
Regular price $11.29 AUD Sale price $9.41 AUD
Each
Quantity Required

Backorder: Out of Stock.
Internal Thread
M5 (5x0.8mm)

External Thread
M8 x 1.25

Length
8.00
mm

(Equiv. 0.315 in.)
Tap Drill Diameter
6.90
mm
Countersink Diameter
8.25
mm
Locking Keys
2
Inserts Thread Repair - M5 -5x0.8mm- M8 x 1.25 8 mm - Stainless Steel
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 Keylocking - Stainless Steel Insert
1 Available Now | Further orders can be expected around Fri, Oct 03, 2025
Regular price $22.95 AUD
Regular price $42.06 AUD Sale price $22.95 AUD
Each
Quantity Required

1 Available Now. Backorder if more than 1.
Internal Thread
M5 (5x0.8mm)

External Thread
M8 x 1.25

Length
8.00
mm

(Equiv. 0.315 in.)
Tap Drill Diameter
6.90
mm
Inserts Thread Repair - M5 -5x0.8mm- M8 x 1.25 8 mm - Stainless Steel
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 Keylocking - Stainless Steel Insert
1 Available Now | Further orders can be expected around Fri, Oct 03, 2025
Regular price $22.95 AUD
Regular price $42.06 AUD Sale price $22.95 AUD
Each
Quantity Required

1 Available Now. Backorder if more than 1.
Internal Thread
M5 (5x0.8mm)

External Thread
M8 x 1.25

Length
8.000
mm

(Equiv. 0.315 in.)
Tap Drill Diameter
6.90
mm
Countersink Diameter
8.250
mm
Locking Keys
4
Inserts Thread Repair - M5 -5x0.8mm- M8 x 1.25 8 mm - Steel
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 Keylocking - Steel Insert
6 Available Now | Further orders can be expected around Wed, Sep 17, 2025
Regular price $6.50 AUD
Regular price $11.57 AUD Sale price $6.50 AUD
Each
Quantity Required

6 Available Now. Backorder if more than 6.
Internal Thread
M5 (5x0.8mm)

External Thread
M8 x 1.25

Length
8.000
mm

(Equiv. 0.315 in.)
Tap Drill Diameter
6.90
mm
Inserts Thread Repair - M5 -5x0.8mm- M8 x 1.25 8 mm - Steel
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 Keylocking - Steel Insert
6 Available Now | Further orders can be expected around Wed, Sep 17, 2025
Regular price $6.50 AUD
Regular price $11.57 AUD Sale price $6.50 AUD
Each
Quantity Required

6 Available Now. Backorder if more than 6.
Internal Thread
M5 (5x0.8mm)

External Thread
M10 x 1.25

Length
10.000
mm

(Equiv. 0.394 in.)
Tap Drill Diameter
8.80
mm
Countersink Diameter
10.250
mm
Locking Keys
4
Inserts Thread Repair - M5 -5x0.8mm- M10 x 1.25 10 mm - Steel
Material: Steel    Tapped Hole Depth: 11.500 mm    Removal Drill Size: 7.500 mm    Removal Drill Depth: 4.750 mm    Installation Tool: KLI-64764RS   
Part Number: KLI-050M-100-10
Inserts Thread Repair - M5 - 5x0.8mm - M10 x 1.25 10 mm Keylocking - Steel Insert
Out of Stock | Backorder Now | Orders can be expected around Fri, Oct 03, 2025
Regular price $47.23 AUD
Regular price $56.67 AUD Sale price $47.23 AUD
Each
Quantity Required

Backorder: Out of Stock.
Internal Thread
M5 (5x0.8mm)

External Thread
M10 x 1.25

Length
10.000
mm

(Equiv. 0.394 in.)
Tap Drill Diameter
8.80
mm
Inserts Thread Repair - M5 -5x0.8mm- M10 x 1.25 10 mm - Steel
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-64764RS   
Part Number: KLI-050M-100-10
Inserts Thread Repair - M5 - 5x0.8mm - M10 x 1.25 10 mm Keylocking - Steel Insert
Out of Stock | Backorder Now | Orders can be expected around Fri, Oct 03, 2025
Regular price $47.23 AUD
Regular price $56.67 AUD Sale price $47.23 AUD
Each
Quantity Required

Backorder: Out of Stock.