KEENSERTS® Threaded inserts, Überblick



Beschreibung

KEENSERTS® threaded inserts are the perfect solution to prevent threads from becoming stripped in fields like mechanical or precision engineering, aviation and aerospace.
KEENSERTS® are made of stainless steel 1. / AISI . They are extremely durable and withstand numerous loosening and tightening cycles without thread stripping. They can be readily used in light metal, steel or cast iron application. They can also be used as an easy and efficient replacement for damaged threads in expensive components. KEENSERTS® threaded inserts are preassembled with special keys that lock the KEENSERTS® into place to absolutely eliminate rotation and vibration even in heavyduty applications. Depending on the tread size, KEENSERTS® are available with two or four key locks, both either with normal or self-locking thread.


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KEENSERTS

®

Threaded inserts

Certainly the perfect fit for heavy duty applications

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2

The center of excellence for high-

performance fastening technology

KVT-Fastening is an expert for high-quality fastening
applications and offers engineering solutions
based on the wide product portfolio of the leading
manufacturers in the market.

Mechanical engineering | Automotive | Electrical engineering | Energy | Precision
engineering | Fluid power | Transportation | Off-shore and Marine | Medical equipment
Aviation and aerospace | Construction industry | Watch manufacturing industry

www.kvt-fastening.com

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3

machines as well as, if needed, the integration into
automated serial production workflows.

Ever since 1927, KVT-Fastening has stood for
experience, solution-driven know-how, unique
expertise in development and consultancy as well
as the ultimate in reliability. Since December
2012, KVT-Fastening is a member of the Bossard
Group. Bossard is a leading provider of intelligent
solutions for industrial fastening technology. The
range includes global sales, technical consulting
(engineering) and logistics of fastening technol-
ogy components and bolts. Customers benefit
from the extension of competencies in industrial
fastening technology and from an optimally
enhanced product or service portfolio.

High-performance solutions from KVT-Fastening
are found wherever absolutely safe and secure
connections are essential. These small but
extremely resilient components play key roles
where it matters most – whether in the electronics
and energy sector, the automotive and transporta-
tion industries, aviation and aerospace, engineer-
ing and construction, precision engineering, or
medical equipment.

KVT-Fastening does not just supply standard
products and individual components, but also pro-
vides close and active customer support in the
search for ideal solutions, particularly when spe-
cific requirements must be fulfilled. This portfolio
is complemented by a range of innovative tools and

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4

KEENSERTS® threaded inserts – guaranteed reliable
fastening solution

KEENSERTS

®

threaded inserts are the perfect solution to

prevent threads from becoming stripped in fields like
mechanical or precision engineering, aviation and aero-
space. KEENSERTS

®

are made of stainless steel 1.4305 /

AISI 303. They are extremely durable and withstand nu-
merous loosening and tightening cycles without thread
stripping. They can be readily used in light metal, steel or
cast iron application. They can also be  used as an easy
and efficient replacement for damaged threads in expen-
sive components.
KEENSERTS

®

threaded inserts are preassembled with

special keys that lock the KEENSERTS

®

into place to

absolutely eliminate rotation and vibration even in heavy-
duty applications. Depending on the tread size,
KEENSERTS

®

are available with two or four key locks,

both either with normal or self-locking thread.

Benefits

n

Easy installation

n

Highly durable

n

Repair of damaged threads

n

Pre-assembled key locks

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5

KEENSERTS

®

Threaded inserts with 2 key locks

6

Threaded inserts with 2 key locks, self-locking

7

Threaded inserts with 4 key locks

8

Threaded inserts with 4 key locks, self-locking

9

Tool, installation

10

Contents

Technical performances, installation recommendations as well as unspecified
tolerances regarding the dimensions of the parts have to be requested individual
for each application before starting the series production.

All dimensions are specified in mm.

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6

L

D

d

1

L

D

d

1

L

1

T

d

2

d

3

d

4

90°

+/-10°

Threaded inserts

2 key locks

Hole pattern

Types KNCM, KNM, KNHM

Material
Stainless steel 1.4305 / AISI 303

Extraction force [N]
Shear engagement „A [mm

2

]“ x ultimate shear

strength of parent material „R

m

[N / mm

2

]“

KEENSERTS

®

with UNC or UNF threads, MS and

NAS specification are available upon request.

Type KNCM, small series

Thread size

d

1

5H

Thread size

D

4h

Order reference

L

± 0,25

d

2

d

3

6H

d

4

T

min.

A

[mm

2

]

M3

M5x0,80

KNCM 3x0,5

4,25

4,4

M5x0,80

5,1

6,0

33,1

M4

M6x0,75

KNCM 4x0,7

5,25

5,5

M6x0,75

6,1

7,5

58,4

Type KNM, standard series

Thread size

d

1

5H

Thread size

D

4h

Order reference

L

± 0,3

d

2

d

3

6H

d

4

T

min.

A

[mm

2

]

M5

M8x1,25

KNM 5x0,8

8,0

6,9

M8x1,25

8,25

10,5

104,9

M6

M10x1,25

KNM 6x1

10,0

8,8

M10x1,25

10,25

13,0

177,7

Type KNHM, heavy-duty series

Thread size

d

1

5H

Thread size

D

4h

Order reference

L

± 0,3

d

2

d

3

6H

d

4

T

min.

A

[mm

2

]

M5

M10x1,25

KNHM 5x0,8

10,0

8,8

M10x1,25

10,25

13,0

177,7

M6

M12x1,25

KNHM 6x1

12,0

10,8

M12x1,25

12,25

15,5

266,7

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7

KEENSERTS

®

L

D

d

1

L

1

T

d

2

d

3

d

4

90°

+/-10°

L

D

d

1

L

1

T

d

2

d

3

d

4

90°

+/-10°

Threaded inserts

2 key locks, self-locking

Types KNML, KNHML

The self-locking feature is designed similarly
to MIL-N-25027 and supplied with MIL-L8937
lubrication.

Material
Stainless steel 1.4305 / AISI 303 with Molykote

®

surface treatment

Extraction force [N]
Shear engagement „A [mm

2

]“ x ultimate shear

strength of parent material „R

m

[N / mm

2

]“

KEENSERTS

®

with UNC or UNF threads, MS and

NAS specification are available upon request.

Self-locking area

Hole pattern

Type KNML, standard series

Thread size

d

1

5H

Thread size

D

4h

Order reference

L

± 0,3

L

1

*

d

2

d

3

6H

d

4

T

min.

A

[mm

2

]

M5

M8 x1,25

KNML 5x0,8

8,0

7,6

6,9

M8x1,25

8,25

10,5

83,1

M6

M10x1,25

KNML 6x1

10,0

8,2

8,8

M10x1,25

10,25

13,0

152,7

Type KNHML, heavy-duty series

Thread size

d

1

5H

Thread size

D

4h

Order reference

L

± 0,3

L

1

*

d

2

d

3

6H

d

4

T

min.

A

[mm

2

]

M5

M10x1,25

KNHML 5x0,8

10,0

8,7

8,8

M10x1,25

10,25

13,0

152,7

M6

M12x1,25

KNHML 6x1

12,0

9,5

10,8

M12x1,25

12,25

15,5

242,5

* L

1

= minimum srew-in depth

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8

L

D

d

1

L

D

d

1

L

1

T

d

2

d

3

d

4

90°

+/-10°

Types KNM, KNHM

Material
Stainless steel 1.4305 / AISI 303

Extraction force [N]
Shear engagement „A [mm

2

]“ x ultimate shear

strength of parent material „R

m

[N / mm

2

]“

KEENSERTS

®

with UNC or UNF threads, MS and

NAS specification are available upon request.

Hole pattern

Typ KNM, standard series

Thread size

d

1

5H

Thread size

D

4h

Order reference

L

± 0,3

d

2

d

3

6H

d

4

T

min.

A

[mm

2

]

M8

M12 x1,25

KNM   8x1,25

12,0

10,80

M12x1,25

12,25

15,5

266,7

M10

M14x1,50

KNM 10x1,5

14,0

12,80

M14x1,50

14,25

18,0

341,6

M12

M16x1,50

KNM 12x1,75

16,0

14,75

M16x1,50

16,25

20,0

470,2

Typ KNHM, heavy duty series

Thread size

d

1

5H

Thread size

D

4h

Order reference

L

± 0,3

d

2

d

3

6H

d

4

T

min.

A

[mm

2

]

M8

M14x1,50

KNHM   8x1,25

14,0

12,80

M14x1,5

14,25

18,0

341,6

M10

M16x1,50

KNHM 10x1,5

16,0

14,75

M16x1,5

16,25

20,0

470,2

M12

M18x1,50

KNHM 12x1,75

18,0

16,75

M18x1,5

18,25

23,0

608,5

M16

M22x1,50

KNHM 16x2

22,0

20,50

M22x1,5

22,25

27,0

896,8

Threaded inserts

4 key locks

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9

KEENSERTS

®

L

D

d

1

L

1

L

D

d

1

L

1

T

d

2

d

3

d

4

90°

+/-10°

Threaded inserts

4 key locks, self-locking

Types KNML, KNHML

The self-locking feature is designed similarly
to MIL-N-25027 and supplied with MIL-L8937
lubrication.

Material
Stainless steel 1.4305 / AISI 303 with Molykote

®

surface treatment

Extraction force [N]
Shear engagement „A [mm

2

]“ x ultimate shear

strength of parent material „R

m

[N / mm

2

]“

KEENSERTS

®

with UNC or UNF threads, MS and

NAS specification are available upon request.

Hole pattern

Typ KNML, standard series

Thread size

d

1

5H

Thread size

D

4h

Order reference

L

± 0,3

L

1

*

d

2

d

3

6H

d

4

T

min.

A

[mm

2

]

M8

M12x1,25

KNML   8x1,25

12,0

9,5

10,80

M12x1,25

12,25

15,5

242,5

M10

M14x1,50

KNML 10x1,5

14,0

10,0

12,80

M14x1,50

14,25

18,0

316,4

M12

M16x1,50

KNML 12x1,75

16,0

11,2

14,75

M16x1,50

16,25

20,0

441,4

Typ KNHM, heavy duty series

Thread size

d

1

5H

Thread size

D

4h

Order reference

L

± 0,3

L

1

*

d

2

d

3

6H

d

4

T

min.

A

[mm

2

]

M8

M14x1,50

KNHML   8x1,25

14,0

10,0

12,80

M14x1,5

14,25

18,0

316,4

M10

M16x1,50

KNHML 10x1,5

16,0

10,0

14,75

M16x1,5

16,25

20,0

441,4

M12

M18x1,50

KNHML 12x1,75

18,0

10,7

16,75

M18x1,5

18,25

23,0

561,8

M16

M22x1,50

KNHML 16x2

22,0

12,4

20,50

M22x1,5

22,25

27,0

855,2

Self-locking area

* L

1

= minimum srew-in depth

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10

Types KNCM small series and KNM, KNML

Types KNHM, KNHML heavy duty series

Internal thread KEENSERTS

®

Order reference

Order reference

M3

KRTM   3 – 01

M4

KRTM   4 – 01

M5

KRTM   5 – 01

KRTM   5 – 02

M6

KRTM   6 – 01

KRTM   6 – 02

M8

KRTM   8 – 01

KRTM   8 – 02

M10

KRTM 10 – 01

KRTM 10 – 02

M12

KRTM 12 – 01

KRTM 12 – 02

M16

KRTM 16 – 02

Installation

1.  Manually screw the KEENSEERTS

®

threaded

insert on the mandrel using 2 - 3 turns.

2.  Attach the installation tool, including the

spigot, and turn it until the key locks snap in
the bore hole. Continue the screwing process
until the KEENSEERTS

®

threaded insert is

fully screwed in.

3.  Hitting the tool with a hammer, drive the snapped

in key locks in until they touch the material.

4.  Slightly lift the tool and it turn clockwise by

about 45°.

5.  Hitting the tool with a hammer, drive the keylocks

in completely until the tool is once again flush
with the surface.

6. Installation complete.

Tool | Installation

Tool for threaded inserts with 2 or 4 key locks

1

1

2

2

3

3

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Access solutions

Thread inserts

Special processes

2)

Installation technology

Blind rivet nuts

Lock nuts

Adhesives  and

sealants

1)

Self-clinching

fasteners

Quick fastening

elements and clips

Pressure intensifiers

3)

Plugs

Stud welding systems

1)

Quick release pins

and spring plungers

Quick connectors

4)

Logistic systems

Solutioneering

Blind rivet technology

Construction

fasteners

2)

Bonding fasteners

Fastening, sealing and flow control solutions for complex
applications

The extensive KVT-Fastening portfolio offers optimal solutions
for your most challenging applications. The products included in
this catalog represent only a selection from our entire product
portfolio. Upon request, we will be pleased to provide additional
information or an individual consultation to you.

For more information about our range
of products and order at our E-shop,
please visit
www.kvt-fastening.com

1)

Not available in Germany.

2)

Only available in Switzerland.

3)

Not available in Switzerland.

4)

Not available in Austria.

KVT-Fastening – Fastening technology

Intelligent logistic systems

Bossard SmartBin and SmartLabel are
intelligent logistics systems which moni-
tor stock with total reliability and ensure
stock replenishment automatically.
An online system transmits the data
to our server, and this – if necessary –
triggers an order. These systems
ensure quick and easy availability of
C-parts while production is running.

Competent analysis for efficient
solutions

KVT-Fastening’s highly qualified experts
analyze the given task at hand.
Based on this sound understanding of
the project, they then develop ideal
solutions that are economical, efficient,
and safe.

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KVT-Fastening AG

Dietikon/Zürich | Switzerland
Tel: +41 44 743 33 33
info-CH@kvt-fastening.com
www.kvt-fastening.ch

KVT-Fastening GmbH

Illerrieden | Germany
Tel: +49 7306 782 - 0
info-DE@kvt-fastening.com
www.kvt-fastening.de

KVT-Fastening GmbH

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info-AT@kvt-fastening.com
www.kvt-fastening.at

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Radom | Poland
Tel: +48 58 762 17 80
info-PL@kvt-fastening.com
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info-RO@kvt-fastening.com
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Bratislava | Slovakia
Tel: +421 9 11102510
info-SK@kvt-fastening.com
www.kvt-fastening.sk

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Tel: +386 1 2808019
info-SI@kvt-fastening.com
www.kvt-fastening.si

KVT-Fastening s.r.o.

Brno | Czech  Republic
Tel: +420 547 125200201
info-CZ@kvt-fastening.com
www.kvt-fastening.cz

KVT-Fastening Kft.

Budapest | Hungary
Tel: +36 1 769 0925
info-HU@kvt-fastening.com
www.kvt-fastening.hu

©KVT / KEENSERTS / EN / 12-2015 / qu / W

e r

eserv

e the right t

o mak

e changes