The Universal Hardware Light Duty Passage Knob is for doors that do not require locking. This knob has a tubular chassis and is for commercial or residential applications such as hallways, entryways and closets. The knob fits doors 1-3/8” to 2” inch thick. It has a 3 hour UL fire rating and meets ANSI Grade 2 standards.
Universal Hardware Light Duty Knob Installation