| Type of protective element | ball latch |
| Material | steel |
| Manufacturer | BOSSARD |
| BN standard | BN 20214 |
| Plating material | black finish |
| Symbol | Thread | Length |
|---|---|---|
| [mm] | ||
| B4X6/BN20214 | M4 | 6 |
| B4X8/BN20214 | M4 | 8 |
| B4X10/BN20214 | M4 | 10 |
| B5/BN20214 | M5 | 25 |
| B8X11/BN20214 | M8 | 11 |
| B8X31.2/BN20214 | M8 | 31.2 |