For bottom mount rails Fixed height.
The batten bridge is 63.5mm wide and has (3) holes for mounting into the batten if desired. The 10mm x 20mm rail attachment slot accepts 5/16-inch or 3/8-inch bolts. Use our 1/4-inch or 5/16-inch Solar Mounting Screws in the 9mm mounting screw slots.
This order comes with 20 units per kit case.