DIN 6918 - Square taper washers for high strenghth structural bolting of steel channel sections



Nominal Dia.
Thread Size
d
 
 
a
b
c
e
h
 
 
 
 
r
t
z
Min.=Nominal Size
max.
Nominal
min
max
Nominal
min
max
Min.=Nominal Size
max.
Nominal Size
min.
max.
13
M12
13
13.43
26
24
28
30
29.35
30.65
1.6
1.9
3.7
4.9
3.9
5.9
2
0.7
1.68
17
M16
17
17.43
32
29.5
34.5
36
35.2
36.8
1.6
1.9
4.45
5.9
4.9
6.9
2.4
0.8
2
21
M20
21
21.52
40
37.5
42.5
44
43.2
44.8
2
2.5
5.25
7
5.8
8.2
2.8
0.9
2
23
M22
23
23.52
44
41.5
46.5
50
49.2
50.8
2
2.5
6
8
6.8
9.2
3.2
1
2
25
M24
25
25.52
56
53
59
56
55.05
56.95
2
2.5
6.26
8.5
7.3
9.7
3.2
1
3.8
25A
M24
25
25.52
56
53
59
56
55.05
56.95
2
2.5
6.25
7.65
6.45
8.85
3.88
1
3.8
28
M27
28
28.52
56
53
59
56
55.05
56.95
2.5
3
6.26
8.5
7.3
9.7
3.2
1
3.8
28A
M27
28
28.52
56
53
59
56
55.05
56.95
2.5
3
6.25
7.65
6.45
8.85
3.88
1
3.8
31
M30
31
32
62
59
65
62
61.05
62.95
2.5
3
6.52
9
7.8
10.2
3.2
1
3.8
31A
M30
31
32
62
59
65
62
61.05
62.95
2.5
3
6.5
8.05
6.85
9.25
3.96
1
3.8
37
M36
37
38
68
65
71
68
67.05
68.95
3
3.5
6.68
9.4
8.2
10.6
3.2
1
3.8
37A
M36
37
38
68
65
71
68
67.05
68.95
3
3.5
7
8.7
7.5
9.9
4.24
1
3.8

Tags: DIN 6918

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