DIMENSIONAL STANDARDS (BOLTS) Unit : mm
Nom
Size
d
d1 H B C D D1 r K a-b E F h s

ġ

ġ

ġ
app
rox
app
rox
ּ ݰ app
rox
ִ ִ ִ app
rox

ġ
M12 12 +0.7
+0.2
8 0.8 22 0
-0.8
25.4 20 20 0.8~1.6 2 0.7 1 2 0.6 25 +5
0
16 16 10 27 31.2 25 25 1.2~20 0.8 30
20 20 +0.8
-0.4
13 0.9 32 0
-1
37 30 29 2.5 0.9 35 +6
0
22 22 14 36 41.6 34 34 1.1 40
24 24 15 41 47.3 39 39 1.6~2.4 3 1.2 45
 
DIMENSIONAL STANDARDS (NUTS) Unit : mm
Nom
Size
d
Outsidedia.
external.
thread
H B C D D a-b E F h
ġ ġ approx approx ּ ִ ִ ִ approx
M12 12 12 0.35 22 0
-0.8
25.4 20 20 0.5 1 2 0.6
16 16 16 27 31.2 25 25 0.8
20 20 20 0.4 32 0
-1
37 30 30 0.9
22 22 22 36 41.6 34 34 1.1
24 24 24 41 47.3 39 39 1.2