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Technical data for Tee-head bolts

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This product is regulated by the following standards:

Standard DIN 261

Tee-head bolts

This standard DIN 261 specifies the requirements for threaded T-head bolts M8 to M100 x 6 for fixing structural parts by means of T-slots, for example, in accordance with DIN 649, on foundations or other structures, where T-head bolts are considered adequate detachable fasteners.

Dimensions in mm - source DIN 261

Publication date: 10/2010 - Supersedes DIN 261: 01/1987

d thread size

b (l<=120)

b (l>120<=200)

b (l>200)

k nom

n nom

m nom

t min

M 8

1.25

5.5

M 10

M 12

M 16

M 20

M 24

M 30

M 36

M 42

M 48

M 56

M 64

M 72 X 6

M 80 X 6

M 90 X 6

M 100 X 6

Designation example: T-head bolt DIN 261 M16 x 140 - 5.6

Designation example: T-head bolt DIN 261 M72 x 400 x M16 - 4.6

Din 261 2010 - Approximate mass, in kg x1000 pcs, (ρ=7,85 kg/dm³) - commercial sizes
d thread size	M8	M10	M12	M16	M20	M24	M30	M36
nominal length l
30	18	28.2
35	19.5	31.3
40
45
50
55
60
65
70
75
80
90
100
110
120
130
140
150
160
170
180
190
200

Reproduced by permission of DIN Deutsches Institut für Normung e. V. The definitive version for the implementation of this standard is the edition bearing the most recent date of issue, obtainable from Beuth Verlag GmbH,Burggrafenstraße 6, 10787 Berlin, Germany.
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This product is regulated by the following standards:

DIN 261

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GERMANY

BTS Befestigungselemente-Technik GmbH

Manufacturer of wing nuts AF, wing screws AF, thumb screws, toothed plate connectors, beam clamps, channel, hexagon (domed) cap nuts

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CHINA

Be-fasten

BE FASTEN (SHANGHAI) CO LTD was founded in Shanghai in 2019. We are specialized in importing, exporting and trading stainless steel and carbon steel fasteners, wire rod and steel bars in metal, metal ingots and steel grating products.

FRANCE

FIXNER

Fixner is specialized in the export of a wide range of fasteners products, industrial supplies, and tools. We offer a wide range of bespoke fasteners and screws and bolts according to DIN, ISO, EN, NF, ANSI, ASME and ASTM standards.

ITALY

PRESSVIT s.r.l.