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M8x1.25HeavyDutyStainlessSteelThreadRepairKeyInserts

Key Locking Insert/

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M8 x 1.25 Heavy Duty Stainless Steel Thread Repair Key Inserts
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M8 x 1.25 Heavy Duty Stainless Steel Thread Repair Key Inserts

Product name M8 x 1.25 Heavy Duty Stainless Steel Thread Repair Key Inserts
Brand Name Boerane
Surface treatment Stainless Steel-Passivated
Material Stainless steel303(1.4305),Carbon steel
Type Heavy duty
Lead time Stock
Application Aviation,Automotive,Machinery, Motorsport and other industry
Reliability test Mechanical dimensions,hardness test.salt spray endurance test
Place of Origin Shen Zhen,China
Certificate ISO 9001:2015;IATF 16949:2016;SGS
OEM service Acceptable
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  • Product Details
  • FAQs
  • Packing & Delivery
  • Catalog Download

M8 x 1.25 Heavy Duty Stainless Steel Thread Repair Key Inserts are engineered for robust strength, resisting rotation and pullout forces. After installation, locking keys secure them in place through parent material threads. Available in inch and metric sizes, their stainless steel solid bushing maintains thread quality. No special tools needed for installation; standard taps and drills suffice. Pre-assembled self-broaching keys set the depth and prevent unintended rotation.

Material: In Stainless Steel – 303 or equivalent

Keys – 302 CRES or equivalent

Finish: Stainless Steel – Passivated

Tolerances: ±.010 inch or ±.25 mm unless specified otherwise.

Part number Dimensions
Standard “KNHM” Self-locking “KNHML” Internal thread Ø Tol.- 5H External thread Ø Tol.- 4h Shear engagement mm² L1

± 0,3

  

L4
KNHM4x0,7  

M4x0,7

  

M8x1,25

 104,9  

8
KNHML4x0,7 83,1 8,0
KNHM5x0,8  

M5x0,8

  

M10x1,25

 177,7  

10
KNHML5x0,8 152,7 8,7
KNHM6x1,0  

M6x1,0

  

M12x1,25

 266,7  

12
KNHML6x1,0 242,5 9,5
KNHM8x1,25  

M8x1,25

  

M14x1,5

 341,6  

14
KNHML8x1,25 316,4 10,0
KNHM10x1,5  

M10x1,5

  

M16x1,5

 470,2  

16
KNHML10x1,5 441,4 10,0
KNHM12x1,75  

M12x1,75

  

M18x1,5

 608,5  

18
KNHML12x1,75 561,8 10,7
Part number Dimensions
Standard “KNHM” Self-locking “KNHML” Internal thread Ø Tol.- 5H External thread Ø Tol.- 4h Shear engagement mm² L1

± 0,3

  

L4
KNHM14x2,0  

M14x2,0

  

M20x1,5

 770,5  

20
KNHML14x2,0 724,4 12,4
KNHM16x2,0  

M16x2,0

  

M22x1,5

 896,8  

22
KNHML16x2,0 855,2 12,4
KNHM18x1,5  

M18x1,5

  

M24x1,5

 1084,4  

24
KNHML18x1,5 1051,5 16,8
KNHM20x2,5  

M20x2,5

  

M30x2,0

 1774,3  

30
KNHML20x2,5 1736,4 17,5
KNHM24x3,0  

M24x3,0

  

M33x2,0

 2189,4  

33
KNHML24x3,0 2161,9 19,0
 

Part number

 Installation dimensions Removal dimensions
 

modified

Core-Ø*

  

C’Sink-Ø

+0,25

 Installation thread Hand installation tool part-no. Drill
Thread Tol.- 6H Depth L2 min. Ø Depth
KNHM4x0,7 6,90 +0,100

-0,025

  

8,25

  

M8x1,25

  

9,5

 KRTM4-02 / KNT01- HM4x0,7AU  

5,5

  

4,00
KNHML4x0,7
KNHM5x0,8 8,80 +0,100

-0,025

  

10,25

  

M10x1,25

  

12,5

 KRTM5-02 / KNT01- HM5x0,8AU  

7,5

  

4,75
KNHML5x0,8
KNHM6x1,0 10,80+0,100

-0,025

  

12,25

  

M12x1,25

  

14,5

 KRTM6-02 / KNT01-HM6x1,0AU  

9,5

  

4,75
KNHML6x1,0
KNHM8x1,25 12,80+0,130

-0,025

  

14,25

  

M14x1,5

  

16,5

 KRTM8-02 / KNT01-HM8x1,25AU  

11,5

  

4,75
KNHML8x1,25
KNHM10x1,5 14,75+0,130

-0,025

  

16,25

  

M16x1,5

  

18,5

 KRTM10-02 / KNT01-HM10x1,5AU  

13,5

  

4,75
KNHML10x1,5
KNHM12x1,75 16,75+0,130

-0,025

  

18,25

  

M18x1,5

  

20,5

 KRTM12-02 / KNT01-HM12x1,75AU  

15,5

  

4,75
KNHML12x1,75
 

Part number

 Installation dimensions Removal dimensions
 

modified

Core-Ø*

  

C’Sink-Ø

+0,25

 Installation thread Hand installation tool part-no. Drill
Thread Tol.- 6H Depth L2 min. Ø Depth
KNHM14x2,0 18,75+0,130

-0,025

  

20,25

  

M20x1,5

  

22,5

 KRTM14-02 / KNT03- HM14x2,0AU  

17,50

  

4,75
KNHML14x2,0
KNHM16x2,0 20,50+0,130

-0,025

  

22,25

  

M22x1,5

  

24,5

 KRTM16-02 / KNT03- HM16x2,0AU  

17,75

  

6,35
KNHML16x2,0
KNHM18x1,5 22,50+0,130

-0,025

  

24,25

  

M24x1,5

  

26,5

 KRTM18-02 / KNT03- HM18x1,5AU  

19,75

  

6,35
KNHML18x1,5
KNHM20x2,5 28,00+0,130

-0,025

  

30,25

  

M30x2,0

  

34,5

 KRTM20-02 / KNT03-HM20x2,5AU  

25,75

  

6,35
KNHML20x2,5
KNHM24x3,0 31,00+0,130

-0,025

  

33,25

  

M33x2,0

  

37,5

  

KNT03-HM24x3,0AU

  

28,75

  

6,35
KNHML24x3,0

Q: Are you a trading company or a manufacturer?

A: We are a manufacturer over 20 years in Shen Zhen,China .

Q: How long is your delivery time?

A: Generally it is 3 days if the goods are in stock. or it is 7days if the goods are not in stock, it is according to quantity.

Q: Do you provide samples? Is it free or extra?

A: Yes, we can provide samples for free, but no shipping fee.

Q: What are your payment terms?

A: Payment<=5000USD, 100% in advance. Payment>=5000USD, 30% T/T in advance ,balance before shippment. Welcome to other terms.

Q: What are your price terms?

A: EXW/FOB/CIF/CFR/FCA/CPT/CIP etc.

Q: What is your product range?

A: Our product range includes key locking insert, self taping thread insert, wire thread insert, tailless thread insert installation tool, thread repair kit, etc. We strictly implement various quality standards such as GB, ISO, DIN, JIS, AISI NFE, BSW, etc., and also accept non-standard products.

Q: How to guarantee the Quality of Industrial Parts?

A: We have been in fastener field over 20 years with full experience. And there are 5 checks in the whole processing, We have IQC (incoming quality control), IPQCS (in process quality control section), FQC (final quality control) and OQC (out-going quality control) to control each process of industrial parts production.

Q: Why should I choose you? What are your advantages?

A: We are a professional manufacturer with many years of production and management experience in the field of fasteners. We can provide our customers with good solutions in terms of production design, production technology, packaging and after-sales service. Customer satisfaction is our only pursuit.

Thank you for your time! Your satisfaction and good feedback are our eternal pursuit!

If you have another question, pls feel free to cotact us at any time .

Packing

Package details: 1. paper packing or plastic packing 2. carton packing 3. wooden packing

Delivery

We can provide multiple shipping methods for your goods, including sea and air, as well as multiple expresses: DHL/FedEx/UPS/TNT/SF/EMS, and so on .

https://www.boeraneinsert.com/wp-content/uploads/2023/09/Key-Locking-Insert-Catalog.pdf

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