Track Bracket Right Angle Edge Clamp. Compatible with 16RT Roller Track. Attach track bracket to edge of flange on a beam, roof truss, or channel by securing with set screw. Edge Clamp permanently welded to bracket. Mounts two pieces of 16 Roller Track perpendicular. Does not provide ability for trolleys to transition. For mounting purposes only. Edge Clamp 0.95 inch opening clearance.