Abstract: A system comprises a set piece, a threaded block, and a nut and is configured to support a panel in a railing system. The set piece comprises a block portion and a base portion. The block portion has a first planar surface and an opposing, second planar surface. The base portion is planar and extends from an edge of the block portion substantially perpendicular to the first and second surfaces of the block portion and away from the first surface of the block portion. The threaded block comprises a base and an extended circular portion. The circular portion comprises a threaded surface on the circumference, and the threaded block is configured to align with the set piece. The nut is configured to engage the threaded block. The nut comprises a corresponding threaded internal circular surface to rotatably engage the extended circular portion and move orthogonal to the threaded block base.