Union (ex Chubb) 3K74E BS 3621:2007 Sashlock

Anti pick and anti saw security features
20mm bolt throw
EN 1634-1 assessed for use on 60 minute timber fire doors
3K74E can be keyed alike with 3G114E
Kitemarked British Standard 3621:2007
Centres: 57mm
Supplied with 3 keys