Image | Item No. | Description |
| 3651 | Technic, Axle and Pin Connector Catalog: Parts: Technic, Connector |
| 3651 | Technic, Axle and Pin Connector Catalog: Parts: Technic, Connector |
| 6538a | Technic, Axle Connector 2L (Ridged with + Hole + Orientation) Catalog: Parts: Technic, Connector |
| 6538c | Technic, Axle Connector 2L (Smooth with x Hole + Orientation) Catalog: Parts: Technic, Connector |
| 9244c01 (Inv) | Technic, Universal Joint 4L Catalog: Parts: Technic, Connector |