Key locking insert is one thread both inside and outside, there is a specific fastener of four or two bolt keys on the external thread , Key locking insert kit into the bottom hole after tapping in, then four pins pressed into play a effect of strong fastening. The products are mainly used for the military, aerospace, railway locomotives, vibration machinery etc. for thread strength requirements for higher product used.

Material: In Carbon Steel - C1215 or equivalent

In Stainless Steel - 303 or equivalen

Keys - 302 CRES or equivalent

Finish: Carbon Steel - Zinc Phosphate

Stainless Steel - Passivated

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

Features:

• No tang to break-off

• No pre-winder tool required

• Easy installation and removal

• Installed with standard drills and taps

• May be used in many types of material

• Keys supply a positive mechanical lock against rotation

• Industrial Style inserts can be purchased in bulk quantities or kits

Typical Applications:

• Military,

• Aerospace,

• Railway locomotives,

• Vibration machinery

Technical Parameters:

Insert

Installation

Removal

Carbon Steel Part No.

Stainless Steel Part No.

Internal Thread Class 3B

External Thread (Mod.) Class 2A

Length in.

Installation Tool Part No.

Tap Drill Size

C'Sink Diameter

+.010/-.000

Thread Tap

Drill

Size Class 2B

Min. Depth

Size

Depth

25900

26300

8-32

5/16-18

0.31

24700

0.32

5/16-18

0.37

7/32

1/8

25901

26301

10-24

3/8-16

0.31

24701

0.38

3/8-16

0.37

9/32

1/8

26101

26501

10-32

25902

26302

1/4-20

7/16-14

0.37

24702

0.44

7/16-14

0.43

11/32

3/16

26102

26502

1/4-28

25903

26303

5/16-18

1/2-13

0.43

24703

29/64

0.51

1/2-13

0.50

13/32

3/16

26103

26503

5/16-24

25904

26304

3/8-16

9/16-12

0.50

24704

33/64

0.57

9/16-12

0.56

15/32

3/16

26104

26504

3/8-24

25905

26305

7/16-14

5/8-11

0.62

24705

37/64

0.63

5/8-11

0.68

17/32

3/16

26105

26505

7/16-20

25906

26306

1/2-13

3/4-16

0.62

24706

45/64

0.76

3/4-16

0.68

21/32

3/16

26106

26506

1/2-20

25907

26307

9/16-12

3/4-16

0.81

24707

45/64

0.76

3/4-16

0.94

21/32

3/16

26107

26507

9/16-18

25908

26308

5/8-11

7/8-14

0.87

24708

53/64

0.88

7/8-14

1.00

25/32

5/16

26108

26508

5/8-18

25909

26309

3/4-10*

11/8-12

1.12

24709

1 1/16

1.14

1 1/8-12

1.31

31/32

5/16

26109

26509

3/4-16*

25910

26310

7/8-9*

11/4-12

1.25

24710

1 3/16

1.27

1 1/4-12

1.44

1 3/32

5/16

26110

26510

7/8-14*

25911

26311

1-8*

13/8-12

1.37

24711

1 5/16

1.39

1 3/8-12

1.56

1 7/32

5/16

26111

26511

1-12*

26112

—

1-14*

Installation and Removal :

FQA

Q1: Are you trading company or manufacturer ?

A1: We are manufacturer since 2004 in Shen zhen ,China .

Q2: Do you have stock for items ?

A2: Yes , most of items are in stock for shippment .

Q3: How long is your delivery time?

A3: Generally it is 1day for stock item,10-15 days for custom items or big quantity over 50000 pcs .

Q4: Can you provide samples ? is it free or extra ?

A4: Yes, we could offer the sample for free charge but do not pay the cost of freight.

Q5. What about the payment terms?

A5: Generally 100% T/T in advance before shippment or mass production ,and we can also consult according to your requirement.

Q6: What's your advantage?

A6: The competitive prices, fast delivery and high quality. responsible-oriented employees strict tolerance, smooth finish and long- life performance.

Q7: What are your machining equipment?
A7: CNC milling machines, CNC turning machines, stamping machines,grinding machines,automatic lathe machines, tapping machines, grinding machines,screw machines, cutting machines and so on.

Q8: How to guarantee the Quality of Industrial Parts?

A8: We have been in fastener field over 19 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.

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Inch Heavy Duty Key Locking Threaded Insert