A lever latch is picked on two measured ranges, and the 158 latches on this shelf grid them cleanly against each other in bands: the thickness of the panel the latch body mounts through, and the grip range it clamps down on when the lever throws home.
The panel thickness bands run 1 to 11 millimetres, 11 to 21, 21 to 31 and 31 to 41, the measure of the door or panel the latch body passes through, and within each thickness band the grip ranges step in turn, 1 to 14 millimetres, 14 to 29, 29 to 45 and 45 to 57, the reach from the panel face to the frame surface the lever must clamp. Two measurements taken off the enclosure with callipers and a rule, the thickness and the reach, land on exactly one latch in the grid, which is the shelf's whole method from end to end.
The lever handle is why these latches serve the big doors quarter turns do not: the throw of the handle gives leverage, pulling a large or gasketed door home with a hand force a small insert simply cannot, and the black powder coated bodies run in locking and non locking forms right throughout the grid, so the same measured fit either secures the door with a key or simply closes it with the lever alone.
The two measurements typed into search find the latch in the grid, and a worn latch measured for its panel and its reach, or simply photographed against the door edge with a rule over WhatsApp on 07754288583, comes back with the band pairing named and the locking-or-plain question answered for the cabinet.
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