Description

Door Knob Progressive with Spindle

Typically used on mortise locks. Each spring loaded spindle is 9/32″ square. Set is thru bolted and includes screws for both 1-3/8″ and 1-3/4″ doors. Replaces Marks USA #K9220. Replacement For Marks 22AC Knobs. Knob and rose are pre-assembled.

Packed one pair per box.