NATIONAL, N178-426, Silver, Keyed Push Button Latches 1-3/4" Hole Spacing, For Wood Or Metal Screen & Storm Doors, Straight Handle, For Doors From 1-1/4" To 2" Thick, Use Pan Mach Screws 8-32 x 2-3/8", Not Provided, Key Operated Locking Unit With 2 Keys Provided, 1 Piece Shaft Provides Firm Push Button Action, Offers Anti Lockout Design, Inside Latch Has Exclusive Double Lock Deadbolt Security.