BT/BP Series (Ball Castors) BT
| Item Code | Wheel Size | Thread Size | Total Height | Load Cap |
| BT40M8 | 40 | M8x15 | 51mm | 25kg |
| BT50M10 | 50 | M10x15 | 63mm | 30kg |
| Item Code | Wheel Size | Thread Size | Total Height | Load Cap |
| BT40M8 | 40 | M8x15 | 51mm | 25kg |
| BT50M10 | 50 | M10x15 | 63mm | 30kg |
