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Tee-head bolts This standard DIN 261 specifies th...Information restricted to the registered users: Login | Register now for a 14-day free trial

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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Standard DIN 261