Round Threaded Tube End (81 Series)
– (G) is recommended ID tube sizes
| Part No. | Size | A | B | C | D | E | F | G | Rating |
| 81/25/M8 | 25xM8 | 25 | M8 | 38 | 46.5 | 11 | 23 | 22 | 100kg |
| 81/25/M10 | 25xM10 | 25 | M10 | 38 | 46.5 | 12 | 23 | 22 | 100kg |
| 81/25/M12 | 25xM12 | 25 | M12 | 38 | 46.5 | 14 | 23 | 22 | 100kg |
| 81/32/M8 | 32xM8 | 32 | M8 | 39 | 45 | 11 | 29.5 | 28-29 | 200kg |
| 81/32/M10 | 32xM10 | 32 | M10 | 39 | 45 | 12 | 29.5 | 28-29 | 250kg |
| 81/32/M12 | 32xM12 | 32 | M12 | 39 | 45 | 14 | 29.5 | 28-29 | 250kg |
| 81/32/M16 | 32xM16 | 32 | M16 | 39 | 45 | 18 | 29.5 | 28-29 | 250kg |
| 81/38/M10 | 38xM10 | 38 | M10 | 38 | 45 | 12 | 35.5 | 35-36 | 300kg |
| 81/38/M12 | 38xM12 | 38 | M12 | 38 | 45 | 14 | 35.5 | 35-36 | 300kg |
| 81/38/M16 | 38xM16 | 38 | M16 | 38 | 45 | 18 | 35.5 | 35-36 | 300kg |
| 81/40/M8 | 40xM8 | 40 | M8 | 39 | 45 | 11 | 36.8 | 36-37 | 350kg |
| 81/40/M10 | 40xM10 | 40 | M10 | 39 | 45 | 12 | 36.8 | 36-37 | 500kg |
| 81/40/M12 | 40xM12 | 40 | M12 | 39 | 45 | 14 | 36.8 | 36-37 | 500kg |
| 81/40/M16 | 40xM16 | 40 | M16 | 39 | 45 | 18 | 36.8 | 36-37 | 500kg |
| 81/51/M12 | 51xM12 | 51 | M12 | 38 | 45 | 14 | 48 | 47-48 | 450kg |
| 81/51/M16 | 51xM16 | 51 | M16 | 38 | 45 | 18 | 48 | 47-48 | 450kg |
| 81/62/M16 | 62xM16 | 62 | M16 | 38 | 45 | 18 | 60.5 | 60-61 | 450kg |
