Eurospec FLL5030 Flat Mortice Latches - Heavy Sprung
Union 2642 - Flat Pattern Latch (64mm)
Snap-Flat Latch SFM8-304 - Snap-Flat Latch
Flat Pattern 64mm Tubular Latch, High Quality Mortice Latch, Door Latch Designed to be Used with Sprung Lever Door Handles or Mortice Knobs (64mm, Silver Chrome). : Amazon.co.uk: DIY & Tools