Miller ShadowLite Beam AnchorDesigned for Flanged Beams * The Miller ShadowLite Beam Anchor connects to flanged beams ranging from 3 inches to 14 inches wide and up to 1 1 4 inches thick. Moves Freely Along Beam * The ShadowLite Beam Anchor locks on to the beam securely, yet moves freely with the worker along the beam to promote safety. Overhead or Foot Level Tie Off * This steel beam anchor can be installed overhead, or when an overhead anchorage doesn't exist, when attached to