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DIN 21547 - 1988 Round Head Bolts With Oval Shoulder For Mine Supports

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Unit: 毫米(mm)
Thread Size
d
M20 M24
P Pitch
b L≤75
75＜L≤160
L＞160
dk max
min
ds max
min
k max
min
k1 max
min
y max
min
2.5 3
45 45
60 60
70 70
38.8 42.8
37.2 41.2
20 24
19.67 23.67
13.4 16.9
11.6 15.1
8 10
7.6 9.6
28.84 30.84
27.16 29.16

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