Prime-Line Mortise Style Fluted Glass Door Knobs, Features 2 in. Outside Diameter Knobs, Matte Black, 1 set

Restore the beauty and functionality of antique interior doors with the Prime-Line E 28318 Mortise Style Fluted Glass Door Knob Set. Designed as a replacement for worn, damaged, or missing knobs on vintage mortise lock systems, this decorative knob set combines classic craftsmanship with a modern matte black finish. The elegant clear fluted glass knobs provide a timeless appearance that complements traditional, farmhouse, Victorian, and restoration-style interiors while preserving the character of older homes. Constructed with durable glass knobs mounted to sturdy diecast bases, this set is designed for use with square-drive mortise lock systems commonly found on antique and vintage interior doors. The included steel spindle measures 17/64 in. x 3-1/2 in. and features 3/8 in.-20 threads, allowing adjustment for a variety of door thicknesses. Set screws secure the knobs to the spindle for dependable operation, and thread-locking compound may be applied if additional fastening security is desired. This set includes two 2 in. diameter fluted glass knobs, matte black diecast bases, set screws, and a steel spindle for installation. Intended for interior applications only, it does not include the mortise lock body, rosettes, latch, strike plates, trim, or mounting fasteners. Before purchasing, compare spindle type, door preparation, and hardware dimensions with your existing mortise lock system to ensure compatibility.