Collection: Inserts - Thread Repair Sets Keylocking

Inserts (With Images)

Inserts - Thread Repair Sets Keylocking

13 Products in this selection

Keylocking inserts are used to repair threads by tapping the worn thread to a standard larger thread, twisting the insert into place and then driving in the keys to lock the insert. Also known as keenserts.
Each kit contains an installation tool and the quantity of inserts shown. One size per kit.
Also known as keenserts, keylocking inserts are available in mild steel and stainless steel.
Installation is by drilling out the old thread, countersinking, tapping new thread with a standard tap, screwing the insert until slightly below the surface, then tapping down the keys using the tool supplied and a hammer.

Additional resources:
Keysteel Catalogue PDF

Internal Thread	External Thread	Length	Inserts Per Kit	Indicative Image
8-32 UNC (4.166mm)	5/16-18 UNC	7.9 mm	9
Material: Steel
Part Number: KLI-0417-KIT Inserts - 8-32 UNC (4.166mm) x 5/16-18 UNC x 7.9 mm Out of Stock Backorder Now \| Backorders for more can be expected around Sat, Jan 18, 2025 Regular price $115.32 AUD Regular price Sale price $115.32 AUD Unit price per Each
Internal Thread	External Thread	Length	Inserts Per Kit	Indicative Image
8-32 UNC (4.166mm)	5/16-18 UNC	7.9 mm	9
Material: Steel
Part Number: KLI-0417-KIT Inserts - 8-32 UNC (4.166mm) x 5/16-18 UNC x 7.9 mm Out of Stock Backorder Now \| \| Backorders for more can be expected around Sat, Jan 18, 2025 Regular price $115.32 AUD Regular price Sale price $115.32 AUD Unit price per Each
KLI-0417-KIT --- Inserts - 8-32 UNC (4.166mm) x 5/16-18 UNC x 7.9 mm Steel KLI-0417-KIT --- Inserts - 8-32 UNC (4.166mm) x 5/16-18 UNC x 7.9 mm Steel Regular price $115.32 AUD Regular price Sale price $115.32 AUD Unit price per Out of stock! Backorder Now
10-32 UNF (4.762mm)	3/8-16	7.9 mm	9
Material: Steel
Part Number: KLI-0476-KIT Inserts - 10-32 UNF (4.762mm) x 3/8-16 x 7.9 mm Out of Stock Backorder Now \| Backorders for more can be expected around Sat, Jan 18, 2025 Regular price $97.23 AUD Regular price Sale price $97.23 AUD Unit price per Each
10-32 UNF (4.762mm)	3/8-16	7.9 mm	9
Material: Steel
Part Number: KLI-0476-KIT Inserts - 10-32 UNF (4.762mm) x 3/8-16 x 7.9 mm Out of Stock Backorder Now \| \| Backorders for more can be expected around Sat, Jan 18, 2025 Regular price $97.23 AUD Regular price Sale price $97.23 AUD Unit price per Each
KLI-0476-KIT --- Inserts - 10-32 UNF (4.762mm) x 3/8-16 x 7.9 mm Steel KLI-0476-KIT --- Inserts - 10-32 UNF (4.762mm) x 3/8-16 x 7.9 mm Steel Regular price $97.23 AUD Regular price Sale price $97.23 AUD Unit price per Out of stock! Backorder Now
1/4-20 UNC (6.35mm)	7/16-14 UNC	9.4 mm	8
Material: Stainless
Part Number: KLI-0635-KIT-SS Inserts - 1/4-20 UNC (6.35mm) x 7/16-14 UNC x 9.4 mm Out of Stock Backorder Now \| Backorders for more can be expected around Sat, Jan 18, 2025 Regular price $93.23 AUD Regular price Sale price $93.23 AUD Unit price per Each
1/4-20 UNC (6.35mm)	7/16-14 UNC	9.4 mm	8
Material: Stainless
Part Number: KLI-0635-KIT-SS Inserts - 1/4-20 UNC (6.35mm) x 7/16-14 UNC x 9.4 mm Out of Stock Backorder Now \| \| Backorders for more can be expected around Sat, Jan 18, 2025 Regular price $93.23 AUD Regular price Sale price $93.23 AUD Unit price per Each
KLI-0635-KIT-SS --- Inserts - 1/4-20 UNC (6.35mm) x 7/16-14 UNC x 9.4 mm Stainless KLI-0635-KIT-SS --- Inserts - 1/4-20 UNC (6.35mm) x 7/16-14 UNC x 9.4 mm Stainless Regular price $93.23 AUD Regular price Sale price $93.23 AUD Unit price per Out of stock! Backorder Now
1/4-20 UNC (6.35mm)	7/16-14 UNC	9.4 mm	8
Material: Steel
Part Number: KLI-0635-KIT Inserts - 1/4-20 UNC (6.35mm) x 7/16-14 UNC x 9.4 mm 1 Available Item Discontinued - Only the quantity available may be ordered - Please contact us if you need a larger quantity Regular price $37.69 AUD Regular price ~~$56.54 AUD~~ Sale price $37.69 AUD Unit price per Each
1/4-20 UNC (6.35mm)	7/16-14 UNC	9.4 mm	8
Material: Steel
Part Number: KLI-0635-KIT Inserts - 1/4-20 UNC (6.35mm) x 7/16-14 UNC x 9.4 mm 1 Available Item Discontinued - Only the quantity available may be ordered - Please contact us if you need a larger quantity \| Regular price $37.69 AUD Regular price ~~$56.54 AUD~~ Sale price $37.69 AUD Unit price per Each
KLI-0635-KIT --- Inserts - 1/4-20 UNC (6.35mm) x 7/16-14 UNC x 9.4 mm Steel Sale KLI-0635-KIT --- Inserts - 1/4-20 UNC (6.35mm) x 7/16-14 UNC x 9.4 mm Steel Regular price $37.69 AUD Regular price ~~$56.54 AUD~~ Sale price $37.69 AUD Unit price per 1 Available Now Sale
5/16-18 UNC (7.938mm)	1/2-13 UNC	10.9 mm	7
Material: Stainless
Part Number: KLI-0794-KIT-SS Inserts - 5/16-18 UNC (7.938mm) x 1/2-13 UNC x 10.9 mm Out of Stock Backorder Now \| Backorders for more can be expected around Sat, Jan 18, 2025 Regular price $120.23 AUD Regular price Sale price $120.23 AUD Unit price per Each
5/16-18 UNC (7.938mm)	1/2-13 UNC	10.9 mm	7
Material: Stainless
Part Number: KLI-0794-KIT-SS Inserts - 5/16-18 UNC (7.938mm) x 1/2-13 UNC x 10.9 mm Out of Stock Backorder Now \| \| Backorders for more can be expected around Sat, Jan 18, 2025 Regular price $120.23 AUD Regular price Sale price $120.23 AUD Unit price per Each
KLI-0794-KIT-SS --- Inserts - 5/16-18 UNC (7.938mm) x 1/2-13 UNC x 10.9 mm Stainless KLI-0794-KIT-SS --- Inserts - 5/16-18 UNC (7.938mm) x 1/2-13 UNC x 10.9 mm Stainless Regular price $120.23 AUD Regular price Sale price $120.23 AUD Unit price per Out of stock! Backorder Now
5/16-18 UNC (7.938mm)	1/2-13 UNC	10.9 mm	7
Material: Steel
Part Number: KLI-0794-KIT Inserts - 5/16-18 UNC (7.938mm) x 1/2-13 UNC x 10.9 mm 1 Available Item Discontinued - Only the quantity available may be ordered - Please contact us if you need a larger quantity Regular price $37.61 AUD Regular price ~~$56.41 AUD~~ Sale price $37.61 AUD Unit price per Each
5/16-18 UNC (7.938mm)	1/2-13 UNC	10.9 mm	7
Material: Steel
Part Number: KLI-0794-KIT Inserts - 5/16-18 UNC (7.938mm) x 1/2-13 UNC x 10.9 mm 1 Available Item Discontinued - Only the quantity available may be ordered - Please contact us if you need a larger quantity \| Regular price $37.61 AUD Regular price ~~$56.41 AUD~~ Sale price $37.61 AUD Unit price per Each
KLI-0794-KIT --- Inserts - 5/16-18 UNC (7.938mm) x 1/2-13 UNC x 10.9 mm Steel Sale KLI-0794-KIT --- Inserts - 5/16-18 UNC (7.938mm) x 1/2-13 UNC x 10.9 mm Steel Regular price $37.61 AUD Regular price ~~$56.41 AUD~~ Sale price $37.61 AUD Unit price per 1 Available Now Sale
5/16-24 UNF (7.938mm)	1/2-13 UNC	10.9 mm	7
Material: Steel
Part Number: KLI-0794F-KIT Inserts - 5/16-24 UNF (7.938mm) x 1/2-13 UNC x 10.9 mm 1 Available Item Discontinued - Only the quantity available may be ordered - Please contact us if you need a larger quantity Regular price $39.56 AUD Regular price ~~$59.35 AUD~~ Sale price $39.56 AUD Unit price per Each
5/16-24 UNF (7.938mm)	1/2-13 UNC	10.9 mm	7
Material: Steel
Part Number: KLI-0794F-KIT Inserts - 5/16-24 UNF (7.938mm) x 1/2-13 UNC x 10.9 mm 1 Available Item Discontinued - Only the quantity available may be ordered - Please contact us if you need a larger quantity \| Regular price $39.56 AUD Regular price ~~$59.35 AUD~~ Sale price $39.56 AUD Unit price per Each
KLI-0794F-KIT --- Inserts - 5/16-24 UNF (7.938mm) x 1/2-13 UNC x 10.9 mm Steel Sale KLI-0794F-KIT --- Inserts - 5/16-24 UNF (7.938mm) x 1/2-13 UNC x 10.9 mm Steel Regular price $39.56 AUD Regular price ~~$59.35 AUD~~ Sale price $39.56 AUD Unit price per 1 Available Now Sale
3/8-16 UNC (9.525mm)	9/16-12 UNC	12.7 mm	6
Material: Steel
Part Number: KLI-0953-KIT Inserts - 3/8-16 UNC (9.525mm) x 9/16-12 UNC x 12.7 mm 1 Available Item Discontinued - Only the quantity available may be ordered - Please contact us if you need a larger quantity Regular price $40.39 AUD Regular price ~~$60.59 AUD~~ Sale price $40.39 AUD Unit price per Each
3/8-16 UNC (9.525mm)	9/16-12 UNC	12.7 mm	6
Material: Steel
Part Number: KLI-0953-KIT Inserts - 3/8-16 UNC (9.525mm) x 9/16-12 UNC x 12.7 mm 1 Available Item Discontinued - Only the quantity available may be ordered - Please contact us if you need a larger quantity \| Regular price $40.39 AUD Regular price ~~$60.59 AUD~~ Sale price $40.39 AUD Unit price per Each
KLI-0953-KIT --- Inserts - 3/8-16 UNC (9.525mm) x 9/16-12 UNC x 12.7 mm Steel Sale KLI-0953-KIT --- Inserts - 3/8-16 UNC (9.525mm) x 9/16-12 UNC x 12.7 mm Steel Regular price $40.39 AUD Regular price ~~$60.59 AUD~~ Sale price $40.39 AUD Unit price per 1 Available Now Sale
3/8-16 UNC (9.525mm)	9/16-12 UNC	12.7 mm	6
Material: Stainless
Part Number: KLI-0953-KIT-SS Inserts - 3/8-16 UNC (9.525mm) x 9/16-12 UNC x 12.7 mm Out of Stock Backorder Now \| Backorders for more can be expected around Sat, Jan 18, 2025 Regular price $121.59 AUD Regular price Sale price $121.59 AUD Unit price per Each
3/8-16 UNC (9.525mm)	9/16-12 UNC	12.7 mm	6
Material: Stainless
Part Number: KLI-0953-KIT-SS Inserts - 3/8-16 UNC (9.525mm) x 9/16-12 UNC x 12.7 mm Out of Stock Backorder Now \| \| Backorders for more can be expected around Sat, Jan 18, 2025 Regular price $121.59 AUD Regular price Sale price $121.59 AUD Unit price per Each
KLI-0953-KIT-SS --- Inserts - 3/8-16 UNC (9.525mm) x 9/16-12 UNC x 12.7 mm Stainless KLI-0953-KIT-SS --- Inserts - 3/8-16 UNC (9.525mm) x 9/16-12 UNC x 12.7 mm Stainless Regular price $121.59 AUD Regular price Sale price $121.59 AUD Unit price per Out of stock! Backorder Now
7/16-20 UNF (11.113mm)	5/8-11 UNC	15.7 mm	6
Material: Steel
Part Number: KLI-1111-KIT Inserts - 7/16-20 UNF (11.113mm) x 5/8-11 UNC x 15.7 mm Out of Stock Backorder Now \| Backorders for more can be expected around Sat, Jan 18, 2025 Regular price $86.50 AUD Regular price Sale price $86.50 AUD Unit price per Each
7/16-20 UNF (11.113mm)	5/8-11 UNC	15.7 mm	6
Material: Steel
Part Number: KLI-1111-KIT Inserts - 7/16-20 UNF (11.113mm) x 5/8-11 UNC x 15.7 mm Out of Stock Backorder Now \| \| Backorders for more can be expected around Sat, Jan 18, 2025 Regular price $86.50 AUD Regular price Sale price $86.50 AUD Unit price per Each
KLI-1111-KIT --- Inserts - 7/16-20 UNF (11.113mm) x 5/8-11 UNC x 15.7 mm Steel KLI-1111-KIT --- Inserts - 7/16-20 UNF (11.113mm) x 5/8-11 UNC x 15.7 mm Steel Regular price $86.50 AUD Regular price Sale price $86.50 AUD Unit price per Out of stock! Backorder Now
1/2-13 UNC (12.7mm)	3/4-16	15.7 mm	4
Material: Steel
Part Number: KLI-1270-KIT Inserts - 1/2-13 UNC (12.7mm) x 3/4-16 x 15.7 mm Out of Stock Backorder Now \| Backorders for more can be expected around Sat, Jan 18, 2025 Regular price $83.59 AUD Regular price Sale price $83.59 AUD Unit price per Each
1/2-13 UNC (12.7mm)	3/4-16	15.7 mm	4
Material: Steel
Part Number: KLI-1270-KIT Inserts - 1/2-13 UNC (12.7mm) x 3/4-16 x 15.7 mm Out of Stock Backorder Now \| \| Backorders for more can be expected around Sat, Jan 18, 2025 Regular price $83.59 AUD Regular price Sale price $83.59 AUD Unit price per Each
KLI-1270-KIT --- Inserts - 1/2-13 UNC (12.7mm) x 3/4-16 x 15.7 mm Steel KLI-1270-KIT --- Inserts - 1/2-13 UNC (12.7mm) x 3/4-16 x 15.7 mm Steel Regular price $83.59 AUD Regular price Sale price $83.59 AUD Unit price per Out of stock! Backorder Now
5/8-11 UNC (15.875mm)	7/8-14 UNC	22.1 mm	3
Material: Steel
Part Number: KLI-1588-KIT Inserts - 5/8-11 UNC (15.875mm) x 7/8-14 UNC x 22.1 mm Out of Stock Backorder Now \| Backorders for more can be expected around Sat, Jan 18, 2025 Regular price $92.50 AUD Regular price Sale price $92.50 AUD Unit price per Each
5/8-11 UNC (15.875mm)	7/8-14 UNC	22.1 mm	3
Material: Steel
Part Number: KLI-1588-KIT Inserts - 5/8-11 UNC (15.875mm) x 7/8-14 UNC x 22.1 mm Out of Stock Backorder Now \| \| Backorders for more can be expected around Sat, Jan 18, 2025 Regular price $92.50 AUD Regular price Sale price $92.50 AUD Unit price per Each
KLI-1588-KIT --- Inserts - 5/8-11 UNC (15.875mm) x 7/8-14 UNC x 22.1 mm Steel KLI-1588-KIT --- Inserts - 5/8-11 UNC (15.875mm) x 7/8-14 UNC x 22.1 mm Steel Regular price $92.50 AUD Regular price Sale price $92.50 AUD Unit price per Out of stock! Backorder Now
3/4-10 UNC (19.05mm)	1.1/8-12 UNF	22.4 mm	3
Material: Steel
Part Number: KLI-1910-KIT Inserts - 3/4-10 UNC (19.05mm) x 1.1/8-12 UNF x 22.4 mm Out of Stock Backorder Now \| Backorders for more can be expected around Sat, Jan 18, 2025 Regular price $132.14 AUD Regular price Sale price $132.14 AUD Unit price per Each
3/4-10 UNC (19.05mm)	1.1/8-12 UNF	22.4 mm	3
Material: Steel
Part Number: KLI-1910-KIT Inserts - 3/4-10 UNC (19.05mm) x 1.1/8-12 UNF x 22.4 mm Out of Stock Backorder Now \| \| Backorders for more can be expected around Sat, Jan 18, 2025 Regular price $132.14 AUD Regular price Sale price $132.14 AUD Unit price per Each
KLI-1910-KIT --- Inserts - 3/4-10 UNC (19.05mm) x 1.1/8-12 UNF x 22.4 mm Steel KLI-1910-KIT --- Inserts - 3/4-10 UNC (19.05mm) x 1.1/8-12 UNF x 22.4 mm Steel Regular price $132.14 AUD Regular price Sale price $132.14 AUD Unit price per Out of stock! Backorder Now