Beautiful mortise lock to enhance your homeOil-rubbed bronze steel trim plates provide added securityInstalls in minutes with a few simple tools This Prime-Line E 2280 Solid Brass Vintage Doorknob Spindle Set is designed for indoor use only. This classic style knob set fits square drive spindle systems commonly found in antique and vintage door hardware sets. The pull knob can adjust to accommodate different door thicknesses. These vintage style pull knobs are constructed of solid brass with a steel spindle. The closet knob comes in a bronze finish. Mounting hardware is included with the knob set. The shanks on these doorknobs include 2 set screws (per shank) for fastening the knobs to the square spindle. The replacement door knob features 2-1/4 inch outside diameter knobs with 1-3/4 inch projection and 17/64 inch x 3-1/2 inch square spindles. Please refer to the line art drawing for dimensions and compare with your needs before purchasing.VINTAGE INTERIOR DOOR KNOBS – This closet door knob set is designed for indoor use only; this classic style knob set fits square drive spindle systems commonly found in antique and vintage door hardware setsADJUSTABLE – The door knob replacement set can adjust to accommodate different door thicknessesDURABLE & STYLISH – These vintage style door knobs are constructed of solid brass with a steel spindle; the door knob set comes in a bronze finishEASY TO MOUNT – Mounting hardware is included with the closet door knobs; the shanks on these closet knobs include 2 set screws (per shank) for fastening the knobs to the square spindle. NOTE: use a small dab of midgrade glue on the threads to keep handle in placeDIMENSIONS – The brass door knob features 2-1/4 inch outside diameter knobs with 1-3/4 inch projection and 17/64 inch x 3-1/2 inch square spindles; please refer to the line art drawing for dimensions and compare to your needs before purchasingDesigned for doors that are 1-3/8 in. to 1-3/4 in. thickSlotted head screwdriver required for installationFor further dimensional information, please see the line drawing