50 Split Jaw Brass Over Joiner Rail Clamps Code 332-7.0mm (Qty 50) B-332-OJSJC-7.0 The Over-the-Joiner Split Jaw Clamp (OJSJC) clamps down over an existing manufacturer's joiner Tightening the joiner and providing a superior connection You can join different brands of track without the loss of gripping force. These clamps can be used to join modular rail sections. For more information, check out http://railwaysmart.com/brass-clamps/brass-over-joiner-clamps