National Hardware® N178-814 Aluminum Universal Knob Latch In Stock Solid metal channel centers the

Solid metal channel centers the bolt which cannot sag

Expands 1' to 3'

Chain Type: D (72V)

Has both 1/2" MNPT and 1/2" FNPT inlet

4 plastic corners and 1 length of vinyl spline

National Hardware® N178-814 Aluminum Universal Knob Latch In Stock Solid metal channel centers theFor wood or metal screen & storm doors with either 1 1 2", 1 3 4", or 3" hole spacing. For doors from 1 3 8" to 2" thick. Mounting screws included to match product finish. Interior locking mechanism provides for enhanced security. Includes spring loaded strike plate. Manufactured from zinc die cast. For wood or metal screen & storm doors with either 1 1 2", 1 3 4", or 3" hole spacing For doors from 1 3 8" to 2" thick Use pan mach screws 6 32 x 2 1 4"