Winkhaus Thunderbolt, Flat 16mm 35mm
Operation: Lift lever or split spindle nightlatch.
- Push in latch a screw will appear in back of lockcase.
- Undo the screw to remove the latch.
- Reverse, reinsert and replace screw.
- Centres: 92mm
- Case height: 185mm
- Case depth: Backset + 18mm
- Overall length – 1770mm
- Distance between deadbolts – 1490mm