Door Knob Trim

Door Knob Trim DDPD016 is a stainless steel trim solution used with panic exit devices to provide controlled exterior access and reliable mechanical performance in high-traffic environments. Classified as Grade 1 and featuring a non-handed structure, this model supports flexible installation across various door orientations without the need for reconfiguration. The cylindrical body incorporates hardened steel components and a heavy-duty tailpiece, ensuring consistent operation under frequent use conditions in commercial settings. This trim accommodates door thicknesses of 1-3/4" and 2-1/4", with a 3-1/2" rose diameter and compatibility with standard 161 cutouts, making it suitable for a wide range of door hardware systems. The patented clutch function helps protect internal components by disengaging under excessive force, improving durability and reducing maintenance frequency. Finish options including 32D, US3, and US4 allow alignment with different project design requirements.

1. Grade 1 Configuration

The DDPD016 Door Knob Trim meets Grade 1 requirements for commercial doors with demanding operating and mechanical performance needs. Its cylindrical body incorporates hardened steel and a heavy-duty tailpiece to transfer exterior lever movement to compatible locking hardware. Clear grade and construction details help consultants, door manufacturers, and buyers review schedules, test samples, and complete project inspections.

2. Patented Clutch Function

A patented clutch function helps limit the transfer of abnormal force from the exterior lever to the internal operating components. The Door Knob Trim can continue to work with the corresponding lock during normal access. This configuration suits frequently used openings or locations where improper lever operation may occur, reducing mechanical stress on the tailpiece and cylindrical body.

3. Non-Handed Installation

DDPD016 uses a non-handed configuration for doors with different opening directions, eliminating separate product codes for left- and right-handed applications. Door manufacturers and contractors can install the trim according to the site orientation without confirming handing during ordering. The universal Door Knob Trim also helps distributors reduce inventory variations and allocate spare units more efficiently.

4. Two Door Thicknesses

The product fits 1-3/4-inch and 2-1/4-inch doors, covering two commercial door thickness specifications. It has a 3-1/2-inch rose diameter, a 4-3/4-inch lever length, and fits a 161 cutout. These defined Door Knob Trim dimensions help project teams verify fabrication drawings, prepared openings, and the required installation space around the lever.

5. Three Standard Finishes

DDPD016 is available in 32D, US3, and US4 finishes for satin stainless steel, polished brass, and satin brass hardware schemes. Buyers can select the Door Knob Trim finish according to the door color, hinges, closers, and compatible locking hardware. This range supports coordinated exposed hardware and simplifies purchasing schedules organized by building zone.

1. Shopping Mall Passages

Staff passages, service doors, and shared floor openings in shopping malls experience frequent operation. The Grade 1 Door Knob Trim uses a hardened-steel cylindrical body and heavy-duty tailpiece for connection to compatible locking hardware. Its patented clutch helps limit the transfer of abnormal lever force, making the trim practical for busy doors requiring exterior operation.

2. School Buildings

Classroom, office, and corridor doors in schools may have different opening directions. DDPD016 is non-handed, allowing contractors to fit it according to each on-site door orientation. The Door Knob Trim accommodates 1-3/4-inch and 2-1/4-inch doors, while compatibility with a 161 cutout supports advance preparation during volume door production.

3. Hotel Service Areas

Hotel offices, linen rooms, storage rooms, and equipment areas require coordinated exposed hardware. The Door Knob Trim is available in 32D, US3, and US4 finishes for silver and brass-colored specifications. Its 3-1/2-inch rose covers the prepared mounting area, while the 4-3/4-inch lever provides practical everyday operation for hotel staff.

4. Factory Management Areas

Factory offices, warehouse management rooms, and auxiliary workshop doors can use DDPD016 for frequent passage and varied door handing. Its Grade 1 construction supports commercial door projects, while the heavy-duty tailpiece connects to compatible locks. The non-handed Door Knob Trim simplifies standardized stocking, site allocation, and future spare-part management across factory facilities.