Description
The GB91 304 SS Cotter Pin Card Pin is a assortment of durable, corrosion-resistant split pins made from 304 stainless steel, conforming to the Chinese GB91 standard, and available in a range of small diameters from 1.0mm to 2.5mm. It is used primarily to lock and secure components, preventing nuts and pins from rotational loosening or axial movement under vibration. This 304 SS Cotter Pin is designed for use in mechanical, automotive, construction, and marine applications. Its small diameter range makes it ideal for precision fastening in lightweight assemblies or components that require secure, long-lasting fastening.
Features & Benefits
- High Corrosion Resistance: Made from AISI 304 stainless steel, ensuring excellent performance in humid or corrosive environments.
- Durability: High wear resistance and high hardness. Maintains a firm grip and shape; strong and durable, not easy to break under stress.
- Reliable Locking: Standard Split Pin / Cotter Pin Shape. Provides a simple, effective fastener that prevents nuts and components from slipping or loosening.
- Precision: Standardized to GB91 specifications. Guarantees dimensional accuracy and reliable fitment for precision fastening in small assemblies.
Specification
|
Nominal size -d |
d |
a |
b≈ |
c |
|||
|
max |
min |
max |
min |
max |
min |
||
|
0.6 |
0.5 |
0.4 |
1.6 |
0.8 |
2 |
1 |
0.9 |
|
0.8 |
0.7 |
0.6 |
1.6 |
0.8 |
2.4 |
1.4 |
1.2 |
|
1 |
0.9 |
0.8 |
1.6 |
0.8 |
3 |
1.8 |
1.6 |
|
1.2 |
1 |
0.9 |
2.5 |
1.25 |
3 |
2 |
1.7 |
|
1.6 |
1.4 |
1.3 |
2.5 |
1.25 |
3.2 |
2.8 |
2.4 |
|
2 |
1.8 |
1.7 |
2.5 |
1.25 |
4 |
3.6 |
3.2 |
|
2.5 |
2.3 |
2.1 |
2.5 |
1.25 |
5 |
4.6 |
4 |
|
3.2 |
2.9 |
2.7 |
3.2 |
1.6 |
6.4 |
5.8 |
5.1 |
|
4 |
3.7 |
3.5 |
4 |
2 |
8 |
7.4 |
6.5 |
|
5 |
4.6 |
4.4 |
4 |
2 |
10 |
9.2 |
8 |
|
6.3 |
5.9 |
5.7 |
4 |
2 |
12.6 |
11.8 |
10.3 |
|
8 |
7.5 |
7.3 |
4 |
2 |
16 |
15 |
13.1 |
|
10 |
9.5 |
9.3 |
6.3 |
3.15 |
20 |
19 |
16.6 |
|
13 |
12.4 |
12.1 |
6.3 |
3.15 |
26 |
24.8 |
21.7 |
|
16 |
15.4 |
15.1 |
6.3 |
3.15 |
32 |
30.8 |
27 |
|
20 |
19.3 |
19 |
6.3 |
3.15 |
40 |
38.5 |
33.8 |
FAQ
Q1: What is the primary function of a split pin?
A: The primary function of a split pin (or SS Cotter Pin) is to act as a failsafe fastener by being inserted through a hole at the end of a bolt, clevis pin, or slotted nut. Once inserted, the tines are separated, locking the primary fastener in place and preventing it from backing out due to vibration.
Q2: Are these SS cotter pins suitable for marine use?
A: Yes. Made from 304 stainless steel, they provide excellent corrosion resistance in marine and coastal conditions.
Q3: Can I reuse an SS cotter pin?
A: Reuse is not recommended after deformation or bending, as it may compromise fastening strength.
