PLAIN WASHERS (IMPERIAL) – BS3410 TABLE 3 |
DIA |
D1 (Max) |
D2 (Max) |
Heavy Pattern |
Light Pattern |
||
H (SWG) |
H |
H (SWG) |
H |
|||
1/4 |
0.27 |
0.56 |
17.00 |
0.06 |
20 |
0.036 |
5/16 |
0.33 |
0.63 |
15.00 |
0.07 |
19 |
0.040 |
3/8 |
0.40 |
0.75 |
15.00 |
0.07 |
18 |
0.048 |
7/16 |
0.46 |
0.88 |
13.00 |
0.09 |
18 |
0.048 |
1/2 |
0.52 |
1.00 |
13.00 |
0.09 |
17 |
0.056 |
9/16 |
0.59 |
1.13 |
12.00 |
0.10 |
17 |
0.056 |
5/8 |
0.66 |
1.25 |
11.00 |
0.12 |
15 |
0.072 |
3/4 |
0.78 |
1.50 |
10.00 |
0.13 |
15 |
0.072 |
7/8 |
0.91 |
1.63 |
9.00 |
0.14 |
15 |
0.072 |
1 |
1.03 |
1.88 |
8.00 |
0.16 |
15 |
0.072 |
1-1/8 |
1.16 |
2.13 |
7.00 |
0.18 |
13 |
0.092 |
1-1/4 |
1.28 |
2.38 |
7.00 |
0.18 |
11 |
0.116 |
1-3/8 |
1.41 |
2.63 |
6.00 |
0.19 |
- |
- |
1-1/2 |
1.53 |
2.88 |
6.00 |
0.19 |
- |
- |
1-3/4 |
1.78 |
3.38 |
5.00 |
0.21 |
- |
- |
2 |
2.03 |
3.63 |
5.00 |
0.21 |
- |
- |