Designs and supplies architectural door hardware including ball-bearing and lift-off hinges, mortice locks, latches, door closers and complete fire door hardware packs from its Carlisle headquarters. Its ZHSS series hinges hold Certifire certificate CF849 (Grade 13, up to 120 minutes on timber and 240 on steel, BS EN 1935 and UKCA marked), with further Certifire approvals CF877 for locks and latches and CF5357 for lift-off hinges.