| Standard | : BS4320 Form C |
| Material | : A4-316 stainless steel or Nylon |
|
Bolt Size |
OD (mm) |
ID (mm) |
t (mm) |
Weight (kg) in A4-316 per hundred |
|---|---|---|---|---|
M5 |
12.5 |
5.3 |
1.0 |
0.079 |
M6 |
14.0 |
6.4 |
1.6 |
0.154 |
M8 |
21.0 |
8.4 |
1.6 |
0.370 |
M10 |
24.0 |
10.5 |
2.0 |
0.583 |
M12 |
28.0 |
13.0 |
2.5 |
0.953 |
| M14 | 30.0 |
15.0 |
2.5 |
1.053 |
| M16 | 34.0 |
17.0 |
3.0 |
1.620 |
| M20 | 39.0 |
21.0 |
3.0 |
2.015 |
| M24 | 50.0 |
25.0 |
4.0 |
4.658 |
| M27 | 56.0 |
28.0 |
4.0 |
5.853 |
| M30 | 60.0 |
31.0 |
4.0 |
6.562 |
| M33 | 66.0 |
34.0 |
5.0 |
9.985 |
| M36 | 72.0 |
37.0 |
5.0 |
11.848 |
| M39 | 76.0 |
40.0 |
6.0 |
17.146 |
Nylon flat washers are recommended to be used as insolation to prevent contact and protection of iron
tranfer between A4-80 fasteners and structural steel works.