Hexagon and Spline Socket Flat Countersunk Head Cap Screws (DIN 7991 A4-70)
 
d
 M6 M8 M10 M12
Thread pitch
1
1.25
1.5
1.75
d2
12
16
20
24
b
18
22
26
30
s
4
5
6
8
e(min)
4.58
5.72
6.86
9.15
K max
3.3
4.4
5.5
6.5
t (min)
2.25
3.2
4.1
4.3
r (min)
0.3
0.5
0.5
1

Weight in kg. Per hundred
Length (L)
 M6 M8 M10 M12
10
0.270
-
-
-
12
0.305
0.610
-
-
16
0.376
0.735
-
-
20
0.446
0.860
1.410
-
25
0.534
1.020
1.660
2.48
30
0.622
1.170
1.910
2.85
35
0.710
1.330
2.160
3.21
40
0.883
1.480
2.410
3.57
50
1.100
1.990
3.010
4.30
60
-
-
3.570
5.40