A latch assembly of the type used on postal cluster units, such as central mailbox units including a latch assembly of multiple dual bold latch mechanisms for securing at multiple latch points a pair of center meeting hinged doors upon closure of the doors. In an embodiment, a method for fabricating an integrated circuit includes filling a trench with a metal and forming an overburden portion of the metal outside of the trench. A plurality of positioning members configured to position the end portions of the pair of extending portions so that the end portions of the extending portions face each other, the plurality of positioning members being configured to be movable along the surface of the liquid discharge head with maintaining a positional relationship among the plurality of positioning members. The lower nut may include threads on an outer surface of the lower nut. The coated sheet is particularly effective for an image display on which they are mounted.