DIN 961 - hexagon head bolts with fine pitch



Thread size (d)
M8*1
M10*1
M12*1.5
(M14*1.5)
(M16*1.5)
(M18*2)
M20*1.5
(M22*2)
M24*2
/
M10*1.25
M12*1.25
/
/
(M18*1.5)
M20*2
(M22*1.5)
M24*1.5
  
a
max.
3
3.75
4.5
4.5
4.5
6
6
6
6
c
min.
0.15
0.15
0.15
0.15
0.2
0.2
0.2
0.2
0.2
 
max.
0.6
0.6
0.6
0.6
0.8
0.8
0.8
0.8
0.8
da
max.
9.2
11.2
13.7
15.7
17.7
20.2
22.4
24.4
26.4
dw  min.
Product grade
A
11.6
15.6
17.4
20.5
22.5
25.3
28.2
30
33.6
B
11.4
15.4
17.2
20.1
22
24.8
27.7
29.5
33.2
c min.
Product grade
A
14.38
18.9
21.1
24.49
26.75
30.14
33.53
35.72
39.98
B
14.2
18.72
20.88
23.91
26.17
29.56
32.95
35.03
39.55
k
  Nominal size
5.3
6.4
7.5
8.8
10
11.5
12.5
14
15
Product grade  A
min.
5.15
6.22
7.32
8.62
9.82
11.28
12.28
13.78
14.78
max.
5.45
6.58
7.68
8.98
10.18
11.72
12.72
14.22
15.22
Product grade  B
min.
5.06
6.11
7.21
8.51
9.71
11.15
12.15
13.65
14.65
max.
5.54
6.69
7.79
9.09
10.29
11.85
12.85
14.35
15.35
k'
min. 
3.54
4.28
5.05
5.96
6.8
7.8
8.5
9.6
10.3
r
min.
0.4
0.4
0.6
0.6
0.6
0.6
0.8
0.8
0.8
s  min.  
max.= nominal size
13
17
19
22
24
27
30
32
36
Product grade
A
12.73
16.73
18.67
21.67
23.67
26.67
29.67
31.61
35.38
B
12.57
16.57
18.48
21.16
23.16
26.16
29.16
31
35
Thread size (d)
(M27*2)
M30*2
(M33*2)
M36*3
(M39*3)
M42*3
(M45*3)
M48*3
(M52*3)
  
a max.
6
6
6
9
9
9
9
9
9
c
  
min.
0.2
0.2
0.2
0.2
0.3
0.3
0.3
0.3
0.3
  
max.
0.8
0.8
0.8
0.8
1
1
1
1
1
da
   
max.
30.4
33.4
38.4
39.4
42.4
45.6
48.6
52.6
56.6
dw
   
min.
38
42.7
46.6
51.1
55.9
59.9
64.7
69.4
74.2
c 
   
min.
45.2
50.85
55.37
60.79
66.44
71.3
76.95
82.6
88.25
k
  
Nominal size
17
18.7
21
22.5
25
26
28
30
33
min.
16.65
18.28
20.58
22.08
24.58
25.58
27.58
29.58
32.5
max.
17.35
19.12
21.42
22.92
25.42
26.42
28.42
30.42
33.5
k'
min. 
11.7
12.8
14.4
15.5
17.2
17.9
19.3
20.9
22.8
r
min.
1
1
1
1
1
1.2
1.2
1.6
1.6
s  min.  
max.= nominal size
41
46
50
55
60
65
70
75
80
min.
40
45
49
53.8
58.8
63.1
68.1
73.1
78.1

Tags: Hexagon Head Bolts Fine Pitch Thread DIN 961

General Material:Stainless Steel,Nickel Alloy,Silicon Bronze,Aluminium Bronze,Brass,Naval Brass,Coppe,Copper-Nickel,Aluminum Alloy,Titanium,Alloy Steel,Such as C1008,C1018,C1022,C1035,C1045,40cr,SCM435,35crmoA,42crmoA,AISI4140SS304/A2-70,SS316/A4-80,SS310s,SS309,SS321,SS410,SS317,SS904L,17-4 PH/630,Duplex 2205,Duplex 31803,Nitronic 40,Nitronic 50,Nitronic 60,Nickel Alloy,Hastelloy C276,Inconel 600,Inconel 601,Inconel 625,Inconel 718,Inconel X750,Inconel 800H,Inconel 825,Monel 400,Monel 405,Monel K-500,MP35N,Nickel 200,Nickel 201,Waspaloy)C65500,C64200,C61400,C63000,C63200,C46200,H59,H62,H67,C46400,C11000,90/10 C70600,70/30 C71500,6061-T6,2024-T4,Ti-6Al-4V Grade 5,ASTM B348 Grade 2,ASTM B348 Grade 7,651/S63198
General Surface Finish:Blackoxide,Zinc,Dacromet 500/Dacromet 320,Non-electrolytically Deposited Zinc Flake,Hot-dip Galvanization,Phosphating,Passviation