Image Item No. Description By  32034  Technic, Axle and Pin Connector Angled #2 - 180 degrees Catalog: Parts: Technic, Connector 1  32192  Technic, Axle and Pin Connector Angled #4 - 135 degrees Catalog: Parts: Technic, Connector 2  6536  Technic, Axle and Pin Connector Perpendicular Catalog: Parts: Technic, Connector 1  6538c  Technic, Axle Connector 2L (Smooth with x Hole + Orientation) Catalog: Parts: Technic, Connector 1  32039  Technic, Axle Connector with Axle Hole Catalog: Parts: Technic, Connector 2