| Manufacturer | BOSSARD |
| Type of protective element | cylindrical stud |
| Material | steel |
| DIN standard | DIN 7979 |
| BN standard | BN 1970 |
| ISO standard | ISO 8735 |
| Symbol | Diameter | Length | Protecting element features |
|---|---|---|---|
| [mm] | [mm] | ||
| B6X20/BN1970 | 6 | 20 | internally screwed |
| B6X60/BN1970 | 6 | 60 | internally screwed |
| B8X70/BN1970 | 8 | 70 | M5 internally screwed |
| B10X70/BN1970 | 10 | 70 | M6 internally screwed |
| B16X100/BN1970 | 16 | 100 | M8 internally screwed |