Cylinders Range color Series 4 MKIV Cam Lock Series 4 MKIV Cam Lock 'Camatic' Cam Lock with an eight-change Octagon mechanism Series 4 MKIV Cam Lock, 30mmSeries 4 MKIV Cam Lock, 25mmSeries 4 MKIV Cam Lock, 18mm
Series 4 MKIV Cam Lock Series 4 MKIV Cam Lock 'Camatic' Cam Lock with an eight-change Octagon mechanism