HUCK BobTail®, Überblick



Beschreibung

The Huck BobTail® lock bolts enable simple connections of extremely high strength to be made. Unlike previous lock bolts, the HUCK BobTail® is designed without a pin-tail, meaning that no uncoated pin-break is needed. Using the newly-developed, compact, semi-automatic setting tools, the lock bolts are set in only two seconds – almost twice as fast as competing products.


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HUCK BOBTAIL

®

THE NExT GENERATION

LOCK BOLTS

JOINED TO LAST.

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FüHRENDE KOmpETENz

FüR LEISTUNGSSTARKE

VERBINDUNGEN

2

LEADING COmpETENCE
FOR HIGH-pERFORmANCE
CONNECTIONS

KVT does not just supply standard products
and individual components, but also provides
close and active customer support in the
search for ideal solutions, particularly when
specific requirements must be fulfilled. This
portfolio is complemented by a range of
innovative tools and machines as well as, if
needed, the integration into automated, serial
production workflows.

With over 85 years of engineering experience,
solution-oriented expertise, as well as
unique development and consulting skills,
KVT-Fastening stands for best-in-class
reliability.

JOINED TO LAST. KVT

KVT-Fastening is an internationally well-
known specialist for high-quality fastening and
sealing applications. In both areas, KVT offers
engineering solutions based on the wide
product portfolio of the leading manufacturers
in the market.

Whether for the electronics and energy sector,
the automotive and transportation industries,
aviation and aerospace, engineering and
construction, precision engineering, or medical
equipment, high-performance solutions from
KVT are found wherever absolutely secure
seals or fasteners are required. These small but
extremely resilient components are applied
where it matters most.

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3

Content

4

Technical information

5

BobTail

®

with small diameter, inch

6

BobTail

®

with large diameter, inch

7

BobTail

®

with large diameter, metric

8

Definition of the order description

9

HUCK

®

tooling systems

10

How BobTail

®

works

All dimensions are specified in mm.

BOBTAIL

®

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TECHNICAL INFORmATION

The HUCK BobTail

®

system includes lock bolts and installation tooling that will

deliver you benefits beyond anything.

Key benefits

This chart shows nut and bolt clamp scatter is much wider compared to

BobTail

®

, and that once vibration begins, clamp load quickly decays with

conventional nuts and bolts, while it holds constant with the BobTail

®

.

25,000

20,000

15,000

10,000

5,000

0

0

50

100

150

200

250

300

TIME (sec.)

CLAMP (lbf)

BOBTAIL

®

Nut and bolt

Installation  speed

Speed of fastener installation has to be seen to be believed with the

1/4" diameter BobTail

®

fastener installing in less than one second. The 16 mm

diameter BobTail

®

fastener installs in two seconds, up to twice as fast as any

large diameter lock bolt on the market.

To see installation video visit

www.afshuck.net .

Smooth, shock free installation sequence

−  Eliminates jolts to the operator’s arms and hands

Unique helical lock groove  (12 mm diameter upwards)

−  Holds pin and collar in place prior to installation

Installation indicator on collar for visual inspection (12 mm diameter
upwards)

The swage indicators indent when installation is complete

* Some installation tooling adaptation will be needed.

Combined with all the benefits of using a HUCK

®

lock bolt

Permanent,mechanicallylockedfastener

−  Installation process automatically provides fastener values
− No torque or re-torque required
−  Unlike conventional nuts and bolts, they will not work loose, even during

extreme vibration

− Easy visual inspection ensures correct installation

Convert from other HUCK

®

lock bolts to BobTail

®

If you are currently using HUCK

®

C50L or C6L lock bolts then due to the

dimensional and strength similarities it is quick and easy to switch BobTail

®

to gain the extra benefits listed above*.

Prior to installation

After installation

Hardened pin

Softer collar
material flows
between
lock-grooves

No pin-tail or pin-break

− No material waste

− Low installation noise
− Increased corrosion resistance

High fatigue strength thread form

Shallow thread and large root radius increase fatigue strength

Consistent clamp with BobTail

®

www.kvt-fastening.com

HUCK BOBTAIL

®

4

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5

www.kvt-fastening.com

Before installation

After installation

Dimensions bolt

Bolt-

Grip range

selection

4.8

(3/16")

4.8

(3/16")

6.4

(1/4")

6.4

(1/4")

7.9

(5/16")

7.9

(5/16")

9.5

(3/8")

9.5

(3/8")

Code number

grip range

up

to

D max

F nominal

D max

F nominal

D max

F nominal

D max

F nominal

1

0.0

4.7

20.7

1.0

2

0.0

6.4

22.2

1.6

3

1.6

7.9

23.8

3.2

4

3.2

9.5

21.2

3.2

25.4

4.7

29.4

4.7

33.3

4.8

5

4.7

11.1

27.0

6.4

6

6.4

12.7

24.4

6.4

28.6

7.9

32.5

7.9

36.5

7.9

8

9.5

15.9

27.6

9.5

30.2

11.1

35.7

11.1

39.6

11.1

10

12.7

19.1

30.7

12.7

31.8

14.3

38.9

14.3

42.8

14.3

12

15.9

22.2

33.9

15.9

33.3

17.4

42.1

17.4

46.0

17.5

14

19.1

25.4

37.1

19.1

34.9

20.6

45.2

20.6

49.1

20.6

16

22.2

28.6

40.3

22.2

36.5

23.8

48.4

23.8

52.3

23.8

18

25.4

31.8

43.4

25.4

38.1

27.0

51.6

27.0

55.5

27.0

20

28.6

34.9

46.6

28.6

39.7

30.1

54.8

30.1

58.7

30.2

Dimensions head and collar

Head

Collar

Bolt-

B max

C max

K max

L max

4.8  (3/16")

9.90

3.2

9.90

7.20

6.4  (1/4")

13.60

3.6

13.10

9.70

7.9  (5/16")

17.30

4.4

16.30

12.10

9.5  (3/8")

20.83

5.3

19.56

14.35

Installed information and maximal hole table

Class 5.8 - after installation

Class 8.8 - after installation

Installed dimensions

Bolt-

Clamp force

(kN)

Tensile

strength

(kN)

Shear

strength

(kN)

Clamp

force

(kN)

Tensile

strength

(kN)

Shear

strength

(kN)

R min

S max

T min

U max

Max

hole size

4.8

(3/16")

4.6

7.3

7.7

5.3

9.8

10.8

3.9

11.7

5.0

6.9

5.6

6.4

(1/4")

8.0

13.3

13.6

10.2

16.5

19.1

5.7

13.6

6.6

9.2

7.1

7.9

(5/16")

12.5

20.5

21.0

18.7

26.7

29.8

7.1

15.2

8.3

11.6

9.1

9.5

(3/8")

17.9

28.9

30.4

26.6

41.4

42.7

8.8

16.9

9.9

13.8

10.7

D

B

B

C

F

K

L

R

S

U

T

Head style: Round, truss head
material: Carbon steel

Additional types on request.

HUCK BOBTAIL

®

1)

Definition of the order description see page 8

1)

1)

BOBTAIL

®

WITH SmALL DIAmETER, INCH

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BOBTAIL

®

WITH LARGE DIAmETER, INCH

6

HUCK BOBTAIL

®

Before installation

After installation

Dimensions head and collar

Head

Collar

Bolt-

B max

C max

K max

L max

12.7 (1/2")

24.2

8.5

13.2

19.0

15.9 (5/8")

30.4

11.0

16.4

23.7

19.1 (3/4")

36.6

13.5

19.7

28.3

22.2 (7/8")

42.3

14.9

22.9

33.0

25.4 (1")

50.8

16.5

26.2

37.8

Dimensions bolt

Bolt-

Grip range

selection

12.7

(1/2")

12.7

(1/2")

15.9

(5/8")

15.9

(5/8")

19.1

(3/4")

19.1

(3/4")

22.2

(7/8")

22.2

(7/8")

25.4

(1")

25.4

(1")

Code number

grip range

up

to

D max

F nominal

D max

F nominal

D max

F nominal

D max

F nominal

D max

F nominal

4

6.4

15.7

48.3

3.8

52.6

3.8

61.8

4.1

68.7

6.4

76.2

6.4

8

12.7

22.1

54.6

3.8

58.9

3.8

68.1

4.1

75.1

6.4

82.6

6.4

12

19.1

28.4

61.0

3.8

65.3

3.8

74.5

4.1

81.4

6.4

88.9

6.4

16

25.4

34.8

67.3

3.8

71.6

3.8

80.8

4.1

87.8

6.4

95.3

6.4

20

31.8

41.1

73.7

3.8

78.0

3.8

87.2

4.1

94.1

6.4

101.6

6.4

24

38.1

47.5

80.0

3.8

84.3

3.8

93.5

4.1

100.5

6.4

108.0

6.4

28

44.5

53.8

86.4

3.8

90.7

3.8

99.9

4.1

106.8

6.4

114.3

6.4

32

50.8

60.2

92.7

3.8

97.0

3.8

106.2

4.1

113.2

12.7

120.7

12.7

36

57.2

66.5

99.1

3.8

103.4

3.8

112.6

4.1

119.5

12.7

127.0

12.7

40

63.5

72.9

105.4

3.8

109.7

3.8

118.9

9.5

125.9

12.7

133.4

12.7

44

69.9

79.2

111.8

3.8

116.1

9.5

125.3

9.5

132.2

12.7

139.7

12.7

48

76.2

85.6

118.1

9.5

122.4

9.5

131.6

9.5

138.6

12.7

146.1

12.7

52

82.6

91.9

124.5

9.5

138.0

9.5

144.9

12.7

152.4

12.7

56

88.9

98.3

130.8

9.5

144.3

9.5

151.3

12.7

158.8

12.7

60

95.3

104.6

137.2

9.5

150.7

9.5

157.6

12.7

165.1

12.7

64

101.6

111.0

157.0

9.5

164.0

12.7

171.5

12.7

68

108.0

117.3

163.4

9.5

170.3

12.7

177.8

12.7

72

114.3

123.7

169.7

9.5

176.7

12.7

184.2

12.7

Installed information and maximal hole table

Class 10.9 - after installation

Installed dimensions

Bolt-

Clamp force

(kN)

Tensile

strength (kN)

Shear strength

(kN)

R min

S max

T min

U max

Max hole size

12.7 (1/2")

53.6

75.8

62.3

10.9

23.7

14.4

18.4

14.3

15.9 (5/8")

85.4

120.5

100.1

10.9

24.4

18.0

23.1

17.5

19.1 (3/4")

126.3

178.4

144.1

13.6

27.9

21.6

27.7

20.6

22.2 (7/8")

174.6

246.7

193.1

15.2

30.3

25.1

32.0

23.8

25.4 (1")

229.1

323.4

251.3

17.4

33.2

29.2

36.9

28.6

D

B

C

F

K

L

Head style: Round
material: Carbon steel

Additional types on request.

R

S

U

T

B

1)

Definition of the order description see page 8

1)

1)

www.kvt-fastening.com

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BOBTAIL

®

WITH LARGE DIAmETER, mETRIC

www.kvt-fastening.com

Dimensions head and collar

Head

Collar

Bolt-

B max

C max

K max

L max

12

25.4

9.6

12.3

17.9

14

30.0

11.5

14.4

21.5

16

33.8

12.2

16.4

23.7

20

42.4

16.0

20.5

29.6

Dimensions bolt

Bolt-

Grip range

selection

12

12

14

14

16

16

20

20

Code number

grip range

up

to

D max

F nominal

D max

F nominal

D max

F nominal

D max

F nominal

10

5

15

46.1

3.8

49

3.8

52

3.8

60.7

3.8

15

10

20

51.1

3.8

54

3.8

57

3.8

65.7

3.8

20

15

25

56.1

3.8

59

3.8

62

3.8

70.7

3.8

25

20

30

61.1

3.8

64

3.8

67

3.8

75.7

3.8

30

25

35

66.1

3.8

69

3.8

72

3.8

80.7

3.8

35

30

40

71.1

3.8

74

3.8

77

3.8

85.7

3.8

40

35

45

76.1

3.8

79

3.8

82

3.8

90.7

3.8

45

40

50

81.1

3.8

84

3.8

87

3.8

95.7

3.8

50

45

55

86.1

3.8

89

3.8

92

9.5

100.7

3.8

55

50

60

91.1

3.8

94

3.8

97

9.5

105.7

3.8

60

55

65

96.1

3.8

99

3.8

102

9.5

110.7

3.8

65

60

70

101.1

3.8

104

3.8

107

9.5

115.7

9.5

70

65

75

106.1

3.8

109

3.8

112

9.5

120.7

9.5

75

70

80

111.1

3.8

114

9.5

117

9.5

125.7

9.5

80

75

85

116.1

9.5

119

9.5

122

9.5

130.7

9.5

HUCK BOBTAIL

®

D

B

B

C

F

K

L

R

S

U

T

Head style: Flanged
material: Carbon steel

Additional types on request.

Before installation

After installation

1)

Definition of the order description see page 8

1)

1)

Installed information and maximal hole table

Class 10.9 - after installation

Installed dimensions

Bolt-

Clamp force

(kN)

Tensile

strength  (kN)

Shear strength

(kN)

R min

S max

T min

U max

Max hole size

12

64.9

87.7

65.4

11.1

23.7

13.1

17.3

13.5

14

87.0

120.0

94.0

11.2

24.6

15.5

20.2

15.5

16

116.0

163.0

122.0

11.2

23.3

17.4

23.1

17.5

20

181.0

255.0

191.0

14.0

26.7

21.8

28.8

22.0

7

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DEFINITION OF THE ORDER DESCRIpTION

Example for an order description:
mBTC-R16BL - is a standard BobTail

®

collar, low carbon steel, 16 mm collar-Ø, zinc + black

BobTail

®

collar 12 to 20 mm, metric

Head style

Material

Bolt-

Grip range

Finish

Round

Carbon steel

grade 5.8

R

4.8 (3/16")

6

Code on page 5

Zinc electroplate

GA

Truss head

98T

Carbon steel

grade 8.8

BR

6.4 (1/4")

8

Zinc electroplate

GA

7.9 (5/16")

10

Zinc electroplate

GA

9.5 (3/8")

12

Zinc electroplate

GA

Material

Collar-

Finish

Low carbon steel

R

12

12

Zinc + black

BL

14

14

Zinc + black

BL

16

16

Zinc + black

BL

20

20

Zinc + black

BL

Example for an order description:
BT-R6-4GA - is a BobTail

®

lock bolt fastener, round head, carbon steel grade 5.8, 4.8 mm (3/16

"

) bolt-Ø, grip 4 (3.2 - 9.5 mm), zinc electroplate

Small diameter BobTail

®

pin 4.8 to 9.5 mm, inch

Head style

Material

Bolt-

Grip range

Finish

Round

R

Carbon steel

grade 8.8

BR

12.7 (1/2")

16

Code on page 6

Zinc electroplate

GA

15.9 (5/8")

20

Zinc electroplate

GA

19.1 (3/4")

24

Zinc electroplate

GA

22.2 (7/8")

28

Zinc electroplate

GA

25.4 (1")

32

Zinc electroplate

GA

Example for an order description:
BTR-BR16-4GA -
is a BobTail

®

lock bolt fastener, round head, carbon steel grade 8.8, 12.7 mm (1/2

"

) bolt-Ø, grip 4 (6.4 - 15.7 mm), zinc electroplate

The order description belongs to the following codes

(marked) . The grip range code you can find on page 5, 6 and 7.

BobTail

®

collar 4.8 to 25.4 mm, inch

Grade

Material

Collar-

Finish

For pin 5.8

Low carbon steel

R

4.8 (3/16")

6

Zinc electroplate

GAH

For pin 8.8

5

Low carbon steel

6.4 (1/4")

8

Zinc electroplate

GAH

7.9 (5/16")

10

Zinc electroplate

GAH

9.5 (3/8")

12

Zinc electroplate

GAH

12.7 (1/2")

16

Zinc electroplate

GAT

Zinc + black

BL

15.9 (5/8")

20

Zinc electroplate

GAT

Zinc + black

BL

19.1 (3/4")

24

Zinc electroplate

GAT

Zinc + black

BL

22.2 (7/8")

28

Zinc electroplate

GAT

Zinc + black

BL

25.4 (1")

32

Zinc electroplate

GAT

Zinc + black

BL

Example for an order description:
BTC-R6GAH - is a standard BobTail

®

collar, low carbon steel, 4.8 mm collar-Ø, zinc electroplate

Large diameter BobTail

®

pin 12 to 20 mm, metric

Head style

Material

Bolt-

Grip range

Finish

Flanged

Carbon steel grade 10.9

DT

12

12

Code on page 7

Mechanical zinc

G

14

14

16

16

20

20

Example for an order description:
mBT-DT12-10G - is a BobTail

®

lock bolt fastener, flanged head, carbon steel grade 10.9, 12 mm bolt-Ø, grip 10 (5 - 15 mm), mechanical zinc

8

Large diameter BobTail

®

pin 12.7 to 25.4 mm, inch

HUCK BOBTAIL

®

www.kvt-fastening.com

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www.kvt-fastening.com

HUCK

®

TOOLING SySTEmS

Aftermarket solution

BobTail

®

collar cutter

Installation gauges

Easy to use ring gauge

used to ensure each

installation is correct.

A quick change of nose

assembly from the

installation nose to the

cutter nose enables

removal of BobTail

®

fasteners using the same

tooling system. BobTail

®

cutter nose assemblies

available in sizes 6.4, 9.5,

12, 12.7, 14, 15.9, 16,

19.1, 20, 22.2 and

25.4 mm Ø.

244BT/256BT

The 244BT

(4.8 - 6.4 mm) & 256BT

(7.9 - 9.5 mm Ø)

pneumatic tools are

specifically designed

for installation

of BobTail

®

.

2480L

Hydraulic compact

installation tool; high

speed & high

durability. Ideal for

high volume produc-

tion to install BobTail

®

with diameter

4.8 - 6.4 mm as well

as other small

diameter lock bolts

and structural blind

rivets.

2503

Hydraulic installation

with extra long stroke.

Ideal for installing

BobTail

®

with

7.9 - 9.5 mm Ø.

Will also install other

lock bolts & structural

blind rivets.

2620-pT/2620

Swageforward

®

tooling series

Hydraulic installation

tool, installs

BobTail

®

with

12 and 12.7 mm Ø.

2628/3585pT

Hydraulic installation

tool. Installs BobTail

®

with 12.7, 15.9, 16

and 19.1 mm Ø.

BTT series

The compact inline

design of the BTT tools

is configured for where

reduced centre edge

distance is required for

12, 14, 16, 20, 12.7,

15.9, 19.1, 22.2 and

25.4 mm Ø.

Compact portable

Powerig

®

. Can be

used with all

hydraulic installation

tools except

HUCK-Spin.

HK432BT powerig

H

H

H

H

H

H

Hydraulic

Pneumatic

H

P

P

The BobTail

®

can be installed outside the factory

environment utilising the following:

Required nose assembly and collar cutter

BTT35LS – BobTail

®

tool

Additional hose sets

To provide hydraulic power:

Hp690 – hand pump or 911D - Hydraulic Diesel Powerig

®

9.5 mm tool shown

Hydraulic tooling. Ideal

for use when

application space is

limited. Installs

9.5 mm and

12 - 25.4 mm Ø

BobTail

®

lock bolts.

Depending on the environmental conditions there are many different types of installation systems (for the BobTail

®

, dependent of

fastener diameter, application type and application access). Some of the most popular tools are shown below but this is just part of
our BobTail

®

tooling range. Discuss your requirements with our dedicated KVT team to find the optimum solution to suit your need.

To install BobTail

®

the basic tooling requirement is:

Installation tool – Either pneumatic or hydraulic
Nose assembly – To match with the fastener and tool
powerig

®

– To supply power to hydraulic tools

Additional hose set – Sometimes required to connect hydraulic tools to the Powerig

®

9

HUCK BOBTAIL

®

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10

INSTALLATION SEqUENCE

Clamp force or pre–load: In the initial stages of the installation

process, the tool engages and pulls on the tail of the fastener.
The joint is pulled together before the anvil portion of the nose
assembly is forced down the collar. This progressively locks
(swages) it into the grooves of the harder pin. The pin and
swaged collar combine to form the installed fastener.
The squeezing action reduces the diameter of the collar,
increasing its length. This in turn stretches the pin, generating
a clamp force over the joint.

Shear strength of BobTail

®

fasteners vary according to the

material strength and minimal diameter of the fastener. By
increasing the diameter or the grade of material, the shear
strength of the fastener can be increased.

The tensile strength of BobTail

®

fasteners is dependent on the

shear resistance of the collar material and the number of
grooves it fills.

FUNCTIONALITy

Head

Collar

Pin

BobTail

®

after installation

BobTail

®

after installation

Tensile

Centre line

Shear plane

Shear

− Pin placed into prepared hole
− Collar spun onto pin

−  Tool is applied to the annular pull grooves and

activated

− Pullers in nose assembly draw the pin into the tool
− Anvil pushes collar against joint
− Initial clamp generated

− Tool swages collar, increasing clamp

− Swaging of collar complete
−  Tool ejects the fastener and releases the puller,

Installation complete

HOW BOBTAIL

®

WORKS

www.kvt-fastening.com

HUCK BOBTAIL

®

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KVT FASTENING AND SEALING TECHNOLOGy

FASTENING, SEALING AND FLOW CONTROL
SOLUTIONS FOR COmpLEx AppLICATIONS

TheextensiveKVTportfoliooffersoptimal

solutions for your most challenging applications.

Theproductsincludedinthiscatalogrepresent

only a selection from our entire product portfolio.

Uponrequest,wewillbepleasedtoprovide

additional information or an individual

consultation to you. Feel free to contact us!

For  more information about our range of
products and order at our E-shop, please
visit

www.kvt-fastening.com

KOENIG-EXPANDER

®

Plugs

Self-clinching fasteners

Stud welding systems

1)

Accesssolutions

Installation technology

Blind rivet nuts

Quick fastening elements

and clips

Pressureintensifiers

3)

Blind rivet technology

Constructionfasteners

2)

Locknuts

Quick release pins and

spring plungers

Threadinserts

Bonding fasteners

Specialprocesses

2)

Adhesivesandsealants

1)

Quickconnectors

4)

1)

NotavailableinGermany

2)

OnlyavailableinSwitzerland

3)

NotavailableinSwitzerland

4)

OnlyavailableinGermany

Screw technology

background image

THE TRUSTED WORLD LEADER IN
FASTENING, SEALING AND
FLOW CONTROL SOLUTIONS

Whether it is about choosing the optimal

fastening, sealing or flow control element

or about developing special solutions for

complex process and construction

procedures – efficiency and project safety

are key in every single task.

Browse our website or contact us to find out

more about the entire range of products and

solutions in the field of high-end fastening,

sealing and flow control technology.

For further information please visit:

www.kvt-fastening.com

JOINED TO LAST.

Energytechnology

Precisionengineering

Electricalengineering

Constructionindustry

Automotive

Aviationandaerospace

Medicaltechnology

Hydraulicsandindustry

Transportation

Mechanicalengineering

Specifications subject to change without notice.

KVT-Fastening AG

Dietikon/Zürich | Switzerland

Tel:+41447433333

info-CH@kvt-fastening.com

www.kvt-fastening.ch

KVT-Fastening GmbH

Illerrieden | Germany

Tel:+49(0)7306782-0

info-DE@kvt-fastening.com

www.kvt-fastening.de

KVT-Fastening GmbH

Asten/Linz | Austria

Tel:+43(0)722467090

info-AT@kvt-fastening.com

www.kvt-fastening.at

KVT-Fastening Sp. z o.o.

Warszawa | Poland
Tel: +48 58 762 17 80

info-PL@kvt-fastening.com

www.kvt-fastening.pl

KVT-Fastening S.R.L.

Bucureşti

| Romania

Tel:+40371381155

info-RO@kvt-fastening.com

www.kvt-fastening.ro

KVT-Fastening spol. s.r.o.

Bratislava | Slovakia

Tel:+421911102510

info-SK@kvt-fastening.com

www.kvt-fastening.sk

KVT-Tehnika pritrjevanja d.o.o.

Ljubljana | Slovenia

Tel:+38(0)12808019

info-Sl@kvt-fastening.com

www.kvt-fastening.si

KVT-Fastening s.r.o.

Brno | CzechRepublic

Tel:+420547125200-201

info-CZ@kvt-fastening.com

www.kvt-fastening.cz

KVT-Fastening Kft.

Budapest | Hungary

Tel:+3617690925

info-HU@kvt-fastening.com

www.kvt-fastening.hu

09 / 2013