Locks and Lock cases from Nigel Rose (Marketing Services) Limited. A large variety but from a wide range of manufacturers. Firstly it should be explained the difference between the two definitions.
A Lock is like supplied with it’s own cut keys. These keys are mostly “Chubb” type bladed mortice keys.
A Lock Case, on the other hand, is designed and manufactured to accept other manufacturers cylinders. So these cylinders can be “Euro Profile” “British Oval” “Swedish Oval” etc.. So a lock case will very often be supplied without any cylinder at all. This means that a Locksmith can fit his customer’s preferred choice of cylinder into the lock case. The only time that a lock case will be guaranteed to be supplied with a cylinder is when the whole package carries a British Standard Kite Mark. Since it passed the standard with that particular cylinder it must be fitted with that cylinder to conform to BS.
The type of lock required will be defined by the material content of the door. Aluminium doors are often fitted with an “Adams Rite” type of lock case which can be sash, deadlock or latch only. These types are normally available in four sizes of back set and were originally measured in Imperial Measurements – 7/8″, 31/32″, 11/8″ and 11/2″.
Wooden or Composite doors can be fitted with mortice type sash or dead locks or lock cases. PVCu doors are normally operated by Multi point locks which have a central gear box operated by a Euro Profile cylinder.