- Turn key to throw deadbolt and release
- Double throw deadbolt: 1st throw gives 10.5mm bolt projection, 2nd throw extends to 21mm
- Latch operated by handle on both sides
- Faceplate: 230mm x 25.5mm
- Case height: 149mm
- Case width: 30mm + backset
- Forend screw centres: 205mm
- Centres: 66mm
- Spindle: 8mm
- Supplied with strike plate and fixings
- Case does not accept bolt through high security escutcheons
- L2290 usually stamped Everest
- Square forend – L2278
- Rounded forend – L2290
- Supplied in singles