Quantity
| Material | MS |
| Material Grade | IS 1367 Grade 4.6 |
| Finish | Black |
| Finish Details | Black Oxide |
| Size | M4 |
| Drive Type | ND |
| Thread Type | ISO Metric Thread |
| Thread Pitch | 0.7 |
| Part Number | 99904000-BX |
| HSN Code | 73182200 |
MS Spring Washers () with a Black finish. Mild steel offers good strength but may rust if the protective coating is scratched or exposed to moisture.
