Whatsapp
|
SO |
S |
- |
440 |
- |
8 |
ZI |
|
| |
| |
|
| |
|
| |
| |
|
Type |
Fastener Material |
|
Thread Size |
|
Length Code |
Plating Designation |

SO – Heat-Treated Carbon Steel
SO4 – 400 Series Stainless Steel