Lockwood 531 series passage lockset, tulip knob. Commercial grade.
Fire Rated to 2 hours.
Passage function
- Opened by knob either side at all times.
Additional info
- Commercial grade passage knobset.
- Opened by knob either side at all times.
- 60 mm backset standard.
- 70 mm and 127 mm latches available separately.
- Suit door thickness 32-48 mm.
- Brass latch 13 mm projection.
- Knobs and roses made of high purity zinc alloy.
- Brass latch bolt with 13 mm projection.
- Fire rated to 2 hours.
- Finished in satin chrome.