For heavy or high frequency mineral core or wood doors with edge rails that won’t hold screws, hung on channel iron frames. Heavy weight gauges increase available bearing surface area for maximum friction reduction. Equipped with four Stanley permanently lubricated non-detachable ball bearings. Reversible flush tips and pins. Consider using a Back Plate with these hinges. Packed with machine screws and grommet nuts for 1 3/4" doors
FBB109
Ball Bearing Heavy Weight Full Surface Brass Butt Hinge