what is a patch fitting
Patch Fittings (Pivots, Springs, Locks, Clamps) Brushed Satin Stainless Steel, Frameless Glass Door Rectangular Aperture Lock. Brushed Satin Stainless Steel, Frameless Glass Door Rectangular Thumb Turn Bolt Aperture Lock. Brushed Stainless Steel, Frameless Glass Door Recessed Floor Pivot.