Nominal
Diameter
M M

5

a

Before Fitting

For Bolt
Size
[ IS : 4218
(Part VI) -
19671 ] H6

Preferred
Length
Range
(From upto
and Including)
L

d1

d2

1

0.2

0.15

1.2

0.8

--

4-20

TO

50

9.5

4

50.5

31.5

M30

20-200