Self Centering Plastic Furring Channel Leveling Anchor Tapered Tip Nylon Expansion Bolt for Blind Ceiling Mounting Product Description The Self-Centering Plastic Furring Channel Leveling Anchor features a tapered conical guide tip that automatically aligns the anchor body with the borehole centerline during the vertical hammer-in step, eliminating the common ceiling installation problem of misalignment when working overhead with limited visibility. The tapered nylon PA6 tip