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Technical data | Tubtara®

General tolerances

 

Head forms

Dimensions in mm

Dimensions in inches

D (head diameter)

Flat head
Countersunk head
Low profile head

± 0,35
0 -0,5
-0,15 +0,3

±.014
0 -.020
-.006 +.012

K (head thickness)

Flat head
Countersunk head
Low profile head

±0,15
0 +0,3
-0,05 +0,3

±.006
0 +.012
-.002 +.012

L (length)

General
Stainless M10 shank 13 mm

±0,35

±0,5

±.014

±.020

Metric thread=6H

 

 

 

Shank size

General (incl. KN)
Splined shank (RS)
M10 shank 12,4 mm

-0,02 -0,15
±0,08
±0,08

-.001 -.006
±.003
±.003

Example:

example technical drawing Tubtara

Recommended tightening torque values (Nm)

Max. recommended torque to avoid damaging the threaded connection and ensure optimal
screw-nut assembly:

 

M3

M4

M5

M6

M8

M10

M12

Aluminium

2,0

2,2

4,5

9,5

17,0

30,0

 

Steel

2,5

3,0

5,9

11,0

25,0

49,0

80,0

Stainless Steel

2,5

3,0

5,9

11,0

25,0

49,0

 

Recommendations for 8.8 bolts in steel and class A2-70 bolts in stainless steel.

Mechanical properties

The tables below show some indicative standard values for Tubtara's with round or hexagonal shank and flat head in first grip :

Mechanical reference values

Mechanical referenc values Tubtara

  • Bolts class 8.8 were used
  • > : value will be higher, but test could not be completed due to breakage of bolt or min. value is used as reference
  • Steel plate (HRB 55) was used to set the Tubtara® (approximately middle of grip range)

 

Geometrical reference values (open end parts)

geometrical reference values Tubtara

Length under plate of open end parts: values obtained after setting

To obtain the length under the plate after setting of closed end parts, you can add the following sizes to the above-mentioned:

closed ends

In some cases the real length will be shorter. All dimensions can be checked on the technical data sheets in our catalogue.

Variations due to setting and environmental conditions can be expected in practice.  The values can be used as reference and optimized by using additional features.

The following values can be used as a guidance for other versions :

mechanical properties Tubtara

Setting Force or Upset Load: Force (in Newton) necessary to deform the Tubtara® referred to in an adequate way.
Upset Stroke: Stroke (in mm) that should be set on the setting tool to give the Tubtara® referred
to, the adequate deformation.
Pull-out or Ultimate Thread Strength: Surpassing this ultimate force (in Newton), the thread of the set Tubtara® will be pulled out.

The mentioned values are average reference values only.
We strongly advise the customer to do his own tests in the proper material thickness and specific application.

Testing methods

Next to the standard inspections during the production process the following tests can be done on customer's request :

  • Pull-out test
  • Maximum torque
  • Push-out test
  • Shear test
  • Torque-to-turn
  • Length under plate
  • Size bulb forming

HX TUBTARA® with seal under the head

Information about NBR O-Ring & compatibility with other products

Shore Hardness
Hydraulic fluids
Fuel Oils
Organic Oils
Brake Fluid
Silicone & Grease
Gasoline
Aromatic fluids up to 50 %
Kerosene

70 - 95
xxxx
xx
xxxx
-
xx
xxx
xx
xxx

Aromatic Hydrocarbons
Aliphatic Hydrocarbons
Water under 80°C
Water over 80°C
Alcohols
Ketone
Acid (concentrated)
Acid (diluted)

x

xxx

xxx
x
xx
-
-

x

Lye
Chlorinated Hydrocarbons
Ozone & Sunlight
Temperature range °C
Electr. properties
Compression sets
Flame resistance

x
x
x
-35 +120
-
xxx
No

Key: xxxx very good --> x satisfactory - not suitable.
Storage: protect against UV-light; store in a dry and dark place (all boxes are marked)
Seals in other materials like Viton are on request.


Countersunk heads

When you use a Tubtara® with a countersunk head, always countersink at 90° so that the head of
the installed Tubtara® protrudes about 0,1 mm above your workpiece. This ensures direct contact with the assembled component.

countersunk Tubtara

Conversion table

Multiply

by

To get

millimeter (mm)

.03937

inch (in)

inch (in)

25,4

millimeter (mm)

kilogram (kg)

2,2046

pound (lb)

pound (lb)

0,4536

kilogram (kg)

Newton (N)

0,2248

pound-force (lbf)

Newton metre (Nm)

8,8507

pound-inch (Lb-In)

 

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Terbekehofdreef 55-59
2610 Wilrijk (Antwerp)
Belgium - Europe

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F +32 3 820 35 11
info@be.dejond.com

VAT BE0404.943.722
RPL Antwerp

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Tubtara® blind rivet nuts
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