The 304 Stainless Steel JIS B 1251 Spring Washer is a helical spring lock washer, made from corrosion-resistant 304 stainless steel, that meets the specific dimensional and performance criteria set out by the Japanese Industrial Standard JIS B 1251, ensuring its quality and suitability for applications where preventing fastener loosening is critical. This JIS B 1251 Spring Washers provide reliable fastening solutions, especially in high-vibration and harsh environments, with the added benefit of excellent corrosion resistance. It's found in diverse applications such as food handling and processing equipment, kitchenware, chemical containers, and various fasteners.
Parameter Information
|
Brand name |
Spring washer |
|
Standard |
JISB 1251 |
|
Category |
Elastic pad |
|
Material |
304/316 stainless steel |
|
Standard type |
Japanese standard |
|
Surface treatment |
Stainless steel washing |
|
Packaging |
Packaging bag + carton packaging |
Specification
|
Nominal diameter |
d |
b |
t |
dc |
ho |
|||||
|
min= nominal |
max |
nominal |
max |
min |
nominal |
max |
min |
max |
(≈1.5t) |
|
|
Φ2.5 |
2.6 |
2.9 |
1 |
1.1 |
0.9 |
0.6 |
0.7 |
0.5 |
5.2 |
0.9 |
|
Φ3 |
3.1 |
3.4 |
1.3 |
1.4 |
1.2 |
0.7 |
0.8 |
0.6 |
6.3 |
1.05 |
|
Φ3.5 |
3.6 |
3.9 |
1.3 |
1.4 |
1.2 |
0.7 |
0.8 |
0.6 |
6.8 |
1.05 |
|
Φ4 |
4.1 |
4.4 |
1.5 |
1.6 |
1.4 |
0.8 |
0.9 |
0.7 |
1.7 |
1.2 |
|
Φ5 |
5.1 |
5.4 |
1.8 |
1.9 |
1.7 |
1 |
1.1 |
0.9 |
9.4 |
1.5 |
|
Φ6 |
6.1 |
6.5 |
2.5 |
2.65 |
2.35 |
1.2 |
1.3 |
1.1 |
11.9 |
1.8 |
|
Φ8 |
8.2 |
8.6 |
3 |
3.15 |
2.85 |
1.6 |
1.7 |
1.5 |
15 |
2.4 |
|
Φ10 |
10.2 |
10.8 |
3.5 |
3.7 |
3.3 |
1.8 |
1.95 |
1.65 |
18.4 |
2.7 |
|
Φ12 |
12.2 |
13 |
4 |
4.2 |
3.8 |
2.1 |
2.25 |
1.95 |
21.6 |
3.15 |
|
Φ14 |
14.2 |
15 |
4.5 |
4.7 |
4.3 |
2.4 |
2.55 |
2.25 |
24.6 |
3.6 |
|
Φ16 |
16.2 |
17.2 |
5 |
5.2 |
4.8 |
2.8 |
3 |
2.6 |
27.8 |
4.2 |
|
Φ18 |
18.2 |
19.2 |
5.5 |
5.7 |
5.3 |
3 |
3.2 |
2.8 |
30.6 |
4.5 |
|
Φ20 |
20.2 |
21.4 |
6 |
6.2 |
5.8 |
3.2 |
3.4 |
3 |
33.8 |
4.8 |
|
Φ22 |
22.5 |
23.7 |
6.5 |
6.7 |
6.3 |
3.5 |
3.7 |
3.3 |
37.1 |
5.3 |
|
Φ24 |
24.5 |
25.7 |
7 |
7.25 |
6.75 |
3.8 |
4.05 |
3.55 |
40.2 |
5.7 |
|
Φ27 |
27.5 |
28.7 |
7 |
7.25 |
6.75 |
4 |
4.25 |
3.75 |
43 |
6 |
